YouTube videos can't give you everything. If you have trouble doing a certain combo, you can ask a person on here and practice instead of trying constantly on computers in training mode who don't dodge or DI so you never know if you're doing it right when it really matters. Also people can give you direct pointers on how to improve your play. No wall of text guide can do that.
Ask Azza if you want to, I gave him Zelda tips and he gave me some on Rosalina. Even though videos and text guides help, you can't rely on them for everything.