Disclaimer: If you have questions, READ the FAQ below, and if you still have issues, contact me on Discord.
Read to find it.
Also, this method is not mine. I typed all of this up, but the "cookies" belong to Trial Master.
Enjoy.

ALWAYS VISIT THIS VIDEO FOR NEW COOKIES. Cookies: https://www.youtube.com/watch?v=chH2VdUim_Q

1. Go to the chrome webstore, and download the extension called editthiscookie.
(Must have a broswer that supports extensions, if you have Opera like me, there is an extension which allows you to install extensions from the chrome webstore.)
Editthiscookie: https://chrome.google.com/webstore/detail/editthiscookie/fngmhnnpilhplaeedifhccceomclgfbg
OperaExtension: https://addons.opera.com/en/extensions/details/install-chrome-extensions/

2. Once editthiscookie is installed, go to this video.
https://www.youtube.com/watch?v=chH2VdUim_Q
This video is the video that supplies the cookies everytime the cookies get deleted.
Go to the description, and go to Cookie 1 or 2, it doesn't matter.
Copy the cookie.

3. Go to crunchyroll.
https://www.youtube.com/watch?v=chH2VdUim_Q

4. Open editthiscookie. Now, click the import cookies button.
http://prntscr.com/iy5tue

5. Paste the cookie you copied, and press the checkmark button at the bottom.
http://prntscr.com/iy5u7p

6. Refresh the page.

7. You are done! Enjoy your free Crunchyroll Premium!
If you have any questions, contact me on Discord.
Before you do, read the FAQ below.
Discord: ネコワイフ#0666
(When I change my name/ID, I will change it here as well.)


Frequently Asked Questions:
1. How do I know if the premium worked?
Well, this "try premium" will disappear. http://prntscr.com/iy5vkm

2. The cookie doesn't work!
If cookie 1 doesn't work, try cookie 2. If none of them work, that means that the cookies were deleted, and you just have to wait for the new cookies. Look at the date beside the cookies, and the date will change, once the cookies are fresh.
http://prntscr.com/iy5we5

3. What is Crunchyroll?
Crunchyroll is a site that lets you watch anime 1080p, no ads, IF you pay. But, with this method, you get to watch it for free.

4. When I import, it says "invalid format. It must be in a .json format."
Did you press ctrl+a to copy? For some reason, notes.io will copy other things too if you press ctrl+a. Just drag and highlight the cookie only.