I main CF so maybe I could give you a little advice in addition to what Shiz said. Basically just be as gay as you possibly can. If you get CF off the stage, he should not come back, ever. He can't sweet spot the ledge so dair spikes destroy him, and repeated ledge-hopped bairs work where you can't dair him.
Lasers totally disrupt CF's dash-dancing, which disrupts his mindgames, which should make him easier to predict. His approach is generally limited to full jump or double jump aerials, or, if he's close enough, he can raptor boost under your lasers.
Vary your tech patterns if the CF is good at tech-chasing. Generally teching in place is probably the best option. You could also occasionally not tech at all, but that's pretty dangerous because CF can stomp => knee you.
You can get killed by stomp => knee around 50ish, I think, so watch out for that. Stomp => raptor boost => knee around 40ish. You can smash DI the raptor boost pretty easily to avoid the knee, though. Uthrow => knee around 92 for any DI but away, so always DI away once you get that damaged. At high %, watch out for CC dtilt => knee as well.
Counterpick FOD.
I watched a couple of your videos and it seems you're playing too aggressively.