Depends on what you make videos on, if it's just general tutorials then make sure you have a good microphone and ensure you're well-spoken so you don't endure tons of negative feedback.
Edited/RSMVs, I'd recommend sony vegas, as a video editor myself (mostly edit FPSs like cod) but I'd also recommend adobe after effects as that's my biggest regret, however I've been using Vegas for a while and can pretty much edit videos that are just as good as AE.
It'll take some time and maybe even money if you lack the hardware but it can pay off if you do blow up, chances are somewhat low though as you're battling thousands of other content creators already out there. Gl