Nice "mindlames" against Doc at 2:32, lol. But yeah, the very first thing I noticed was your spacing. You were ALWAYS right in his grill. And I noticed a lot of unnecessary full-hops as well.
You were also edgeguarding really far from the stage, which is fine sometimes but, don't be afraid to play it safe with a fsmash or dtilt to edgeguard. You are good with your spaced uairs, however, there wasn't much that you did out of them.
I also noticed that you stood idle from time to time. I don't know, I may just be biased but, it is always better to be constantly mobile. Not necessarily to be faster or as fast as your opponent, but to keep the tempo of the match going so you can instantly adjust to a changing of pace. It's NEVER a good idea to be a sitting duck.
Keep at it though, I see potential.