General tips:
 - Fullscreen gives you better frames and lower input lag at the cost of it being slightly harder to check discord
 - DVa is an "in your face" bully who uses her extremely high burst damage and good mobility + bulk to quickly erase key targets and make space for the rest of her team. Be careful using her at range because more often than not you're wasting her potential
 - Try to get more value out of your abilities, especially defense matrix. You should be using them considerably more often while also taking more care not to waste them in order to get max value out of DVa's kit
 - The time it takes you to switch your focus on to critical targets needs to be cut in half at the absolute least. Think about who is the biggest threat to you and/or your team, and focus them first
Timestamped tips:
[00:47] - You should use your boosters to get to the point. Your team will benefit from being the first to engage, so use movement abilities to get to the point faster
[00:54] - You're shooting from well outside your maximum effective range. DVa likes to be in her opponents' faces
[01:06] - Reaper is behind you! It took you a full four seconds to notice him, which could have caused you serious trouble
[01:13] - Odds are, you won't be able to 1v1 Reaper as DVa. If he's in your face, your best bet is to fly to the rest of your team. Failing that, you should at least use your missiles and defense matrix together to burst down his health
[01:21] - Pick one target and stick to it. By splitting your attention like this, you end up not killing anyone
[01:24] - Standing still against a Junkrat (or in general) is not a smart idea, and it got you killed here. Pay close attention to Orisa's barrier's HP
[01:55] - DVa does a LOT of burst damage, which is her greatest strength. Play to that strength by doing multiple things at the same time. You can shoot while using missiles or defense matrix while using missiles. You can also melee after using your boosters to maximize your burst DPS
[02:16] - Locating Junkrat took way too long here. Pay close attention to audio cues and visual cues (such as his bomb's trajectory) to find him quickly
[02:24] - Excellent use of your boosters! Don't forget about the DVa behind you
[02:35] - Engaging Doomfist was a mistake. At full HP, he manhandles DVa. Generally avoid him unless you're helping your team finish him off or peeling him off squishies
[02:41] - Try to pay more attention to your location in space. Especially when there's a