Getting started? Try the best beginner method video I’ve found:
Once you can solve the cube consistently, at any speed, you should work on skipping the daisy step with J Perm’s “7 Tips For An Efficient Cross Every Solve (CFOP)” video:
Once you have the cross down then work on combining solving the first two layers (also known as F2L) in one step with J Perm’s “Learn F2L in 6 minutes” video which definitely takes way more than 6 minutes: