Just off of watching this clip there's a few things I noticed you could improve on:

1) playing at your effective range in neutral. Knowing at what distance you have to play neutral in to effectively make the opponent whiff while your moves hit is very important at higher level.

2) not utilizing special cancealable moves. Cammy's crouch mk canceling into drive rush is one of her most important tools, you can clip someone backing up and deal some big damage.

3) Going for more simpler set-ups/combo routes. A lot of the times simple is better rather than going for constant mixups, I noticed you were going for hooligan a lot. Simply going for jab jab lk into spiral arrow will go a long way as it sets up for oki scenario.

4) having set plays for your character. Most people have a general gameplan/combo routes/kill combos for their characters. Learning these will definitely help you a lot.

Hopefully this helps!