Hi there karatecuber, welcome to the forum.
For some good tutorials check out badmephistos youtube channel and website.
Start with the "how to become a speedcuber" video and go from there.
You should also realise that CFOP is not the only cubing method.
Just as there are many styles in karate there are many different ways to solve the cube:
CFOP (seems the most used method and also the one that currently sets the speed records)
Roux
Petrus
ZZ
Heise
Corners first
Edges first
Judging from your Youtube it seems you like to solve different types of puzzles so you may also be into "multi-method cubing".
BTW, how many "karate-cubers" are there on the forum?
So far we've got:
Karatecuber
Cubenovice and Birgit (started Shotokan a few months ago)