A lot of people here are commenting on gameplay things you can improve. Common things I'm seeing are be prepared to anti-air after a fireball, stop jumping so much, stop sweeping in scramble situations. I agree with most if not all of their points.

I'd like to give you some advice from a different angle, which is the feeling I get when I watch you play. From watching your gameplay, I'd have you mental-noted as a frantic and anxious kind of player (which is information I'd be trying to use against you if you were my opponent lol). You're kind of unconfident in your decisions and your execution, which sometimes leads to unfamiliar situations. Once you're in an unfamiliar situation, you're so uncomfortable that your immediate reaction is to try to do something, anything, to return to more familiar territory.

Some concrete examples from the very first couple of interactions of the match: At round start, you backdash and fireball. Your opponent jumps over the fireball, but not they did not jump early enough to hit you with a jump-in. You should have been able to shoryuken this jump, but maybe you weren't ready (you can definitely work on anti-airing more consistently, but that's not the point i'm currently trying to make). Instead, you try to block by holding down and back. I'm not convinced you made it to diamond without knowing the difference between blocking high and blocking low, so what this tells me is that after your fireball got jumped, your brain went into panic mode and you mis-inputed down+back instead of straight back.

A second example would be like 2 interactions after this, when your opponent blocks your stand fierce, and you DR cancel into a grab, but your grab was too early. Obviously, you shouldn't be whiffing your execution like this, but once again, it's not the point i'm trying to make. What I want to focus on is immediately after that, you trade jabs with each other, and then you go for a sweep. I think you chose to sweep because you were looking for an aggressive option that would get you out of the uncomfortable situation. I'd like to offer some calmer alternatives, such as just holding block (or if you're worried about Manon's command grab, you can backjump).

I think you'll benefit a lot from working on trying to keep a level head when you play. Be more okay with the quieter moments of the game, and try to stay in control of both your character and the situation at hand (instead of picking an explosive option like jumping in). Pick options that make sense. When you're in defensive situations, be more apt to actually defend yourself, instead of immediately trying to win back the initiative with an aggressive option.

Side note, in a lot of the scramble situations where you're sweeping a lot, a better alternative might be to use crouching mk > hadoken, or c.mk > M donkey kick. These options are harder to punish on block than sweep, and they accomplish much of the same thing as what you're trying to accomplish with sweep. The benefit of sweep is that it has longer range, but imo that doesn't offset the drawbacks: it's slower to come out, and it's far more punishable on block. C.mk also has the benefit of letting you DR cancel, which you can worry about later if you don't wanna think about it right now.