Let's see...
I'll do a general critique since you prefer I watch all of the videos.
combos need to come together more(need to connect with more moves...sometimes you overspaced), *****giving up too much stage control immediately when lasering and then expecting lasers to hit Peach out of her float when she's on top of you(biggest one), took a few big risks but I guess they worked out well enough, you had odd moments of wanting to continue your advantage when you couldn't and holding back when you could have easily pressed your advantage(not many of those though)...
second match you got too aggressive early on, then you got too deliberate and were read easily, then you started doing better but got too anxious for the kill on his 3rd stock, then you just made several situational decisions/tried to challenge too much instead of baiting and you died.
Third match you gave up stage control too much again, but you didn't always suffer that badly for it(I still think it could be worked on though), strange, typically ineffective throw followups(like Bthrow to slightly moving forward Dair or Uthrow to Bair...or was that just tech skill mistakes?), you need to capitalize on openings more(whiffed Dsmash, you lasered Peach out of her float, etc), probably could have stood to shield DI/roll more in pressure, weaker punishments this match overall.
Game 4 just seems to combine a bunch of the other stuff I said.
I could definitely tell you played better than usual these matches though, if that makes you feel any better haha.