𝗔 𝗖𝗼𝗺𝗽𝗿𝗲𝗵𝗲𝗻𝘀𝗶𝘃𝗲 𝗚𝘂𝗶𝗱𝗲 𝘁𝗼 𝗦𝗲𝗹𝗳 𝗦𝘁𝘂𝗱𝘆𝗶𝗻𝗴

Hello everyone! So as A'level students, I think we all have been at a point where we felt lost and wanted to catch up. Self studying is one of the best methods for it and in this post, I'll try to help you with that by sharing my own experience and by reccomending a bunch YT channels that could potentially help you.
What I have found is, the most effective way to learn a topic is to use a combination of these - read the textbook, watch tutorials from YouTube and then solve QPs. Simple indeed!
If you break it down to steps, they'd be:
𝟭. Read the full chapter you want to learn from the Edexcel textbook. While doing so, you should mark the topics you don't understand and also note down any important definitions or points. This would give you an overview of what to learn.
𝟮. Watch tutorials from YT on the topics you marked out earlier. The tutorials you watch should be detailed ones which clearly explain the topic, not small videos which simply skim through the content without explaining them. It doesn't necessarily have to be a video for the Edexcel curriculum but it should be one that clearly explains the topic.
𝟯. If you do have a set of notes, go through them. By this time, the general concept of the chapter should be very clear to you. If they aren't, try watching more videos on the same topic from different creators.
𝟰. Solve the questions in the Edexcel book and also any other worksheets you might have from your school or coaching.
𝟱. Now that you are fairly proficient in that topic, go a step ahead and solve some topic wise questions. You could find a bunch of these for free at physicsandmathstutor.com
Now, let's get to the YT part of this post which would help you with step 2.
𝗚𝗲𝗻𝗲𝗿𝗮𝗹𝗹𝘆 𝗨𝘀𝗲𝗳𝘂𝗹 𝗖𝗵𝗮𝗻𝗻𝗲𝗹𝘀
• Khan Academy (Reference)
• The Organic Chemistry Tutor (Reference)
• Bozeman Science (Reference)
• SnapRevise (Explanation)
• Freesciencelessons (Revision)
• Malmesbury Education (Practical)
Khan Academy, Organic Chemistry Tutor and Bozeman are really good for generally everything related to science but do note, all of them follow the US curriculum so you'd often need to refer to your specification while using these. I particularly find Khan Academy's library sections on their website, like the Physics Library and the Chemistry Library to be very useful. You would find videos, followed by quizzes on pretty much every topic in there.
SnapRevise is a good source given that it follows the British A level curriculum. If you're taking notes, you'd love their videos, they write down all the definitions and also highlight all the important facts, so taking notes while watching their lectures would be pretty convenient. Otherwise if you're someone who likes your lectures to be engaging, I'd recommend going to Khan Academy or the other channels I'd mention in later parts of this post. Lastly, Malmesbury Education is a very good channel for practicals.
𝗣𝗵𝘆𝘀𝗶𝗰𝘀
• Reade Physics (Explanation)
• ZPhysics (Explanation)
• DrPhysicsA (Explanation)
• Science Shorts (Explanation)
• Physics Online (Revision)
• MedDude (QP Solving)
The first 4 here are very good for detailed explanation of a topic and Physics Online can be used for revision as their videos are relatively short and more to the point, but for learning a topic's theory from scratch, I would discourage you from watching him. You might find DrPhysicsA to be a bit hard to follow as he explains his stuff on a paper and his lectures are really long, in that case you could follow Reade and ZPhysics whose explanations are relatively concise. Science Shorts doesn't explain whole chapters so it might be tough to learn using his videos alone but for exceptionally complicated topics like the Double Slit experiment, his videos are phenomenal. So I recommend watching him alongside some other more structured YTer like ZPhysics or Reade. Also, do watch his practical videos, especially the one where he explains uncertainties, it'll help you a lot with your Unit 3. Finally, while you're doing QPs, watch MedDude, he has solutions for most of the recent years. He also solved a bunch of Chemistry papers.
𝗖𝗵𝗲𝗺𝗶𝘀𝘁𝗿𝘆
• Miss Natalie Chemistry (Explanation)
• Eliott Rintoul (Explanation)
• Allery Chemistry (Explanation)
• Alt Academy (Explanation)
• Toby Dunkin
Miss Natalie is a lifesaver for those taking Chemistry as she specifically follows the IAL curriculum, which means her videos are arranged in the same order as the book. However, personally, I have found her videos to be a bit boring due to the fact that she uses slides for her explanations…which is quite unengaging and could easily get monotonous. However, if you are taking notes, these slides would help you a lot. For understanding theory in a more engaging manner, I'd recommend watching Eliott Rintoul and Allery Chemistry first and then once you understand the theory and would like to take notes, go to Miss Natalie. Alt Academy is equally as good as the other two so you could watch them too. Toby Dunkin is a channel I found useful for certain topics like chapter 1 calculations but he doesn't have everything covered so he'd not be as useful…but he did solve a bunch of QPs which would help you in the last months of your prep.
𝗠𝗮𝘁𝗵𝘀
• Maths Deity (Explanation)
• MrArnoldMaths (S1) (Explanation)
• Exam Solutions (Explanation)
• The GCSE Maths Tutor (Explanation)
• Zeeshan Zamurred (Explanation)
• Mr Hassan's Maths Channel (QP Solving)
Maths Deity is the single most useful channel for IAL maths out there. Guy has covered everything in the P1-4 and M1 syllabus and has separate playlists, organized in the same order as the book, for each unit. After explaining a chapter in detail, at the end of the video he'd also give you some important questions to solve, including their solutions. A downside to his channel is that he hasn't completed the S1 syllabus yet (at the time of this post) so for that, you can try MrArnoldMaths, he has a concise playlist for it which is almost in the same order as the IAL course. ExamSolutions and the other two channels are good too but they don't specifically follow the IAL spec. Regardless, they have decent explanations. Refer to them whenever you feel like Maths Deity's explanation isn't sufficient. Mr Hassan will be your biggest asset in the late days when you're solving QP. He has solved literally every paper in existence! And the best part is, he has separate playlists sorted by both year and chapter. So you could use his video also while you're solving chapterwise QP!
Lastly, thanks for reading this long post. I really hope it will help you with your studies. Keep working hard and surely you'll ace those exams!