Also, just start.
It's very easy to get bogged down by just planning that many people burn themselves out before they can even get some traction.
Know that it will be a grind, and be willing to grind it out. By that I mean constant posting.
You can't just post 1 or 2 videos and stop because no one is watching. Post 30 videos and I guarantee that the views will come.
Also, look at other channels in your niche.
See what they do that works, copy it but do it better. <-- this is your winning formula.