3d compositing, where to start?

freerider74 Posts: 7 Just Starting Out

I have been editing videos for many years (premiere, fcp, resolve) but have never done any 3d compositing. I recently bought hitfilm pro 16 and the idea is to learn a bit of 3d compositing. So where do I start? Whats the best video to begin with?

I'm just doing this for fun not as a professional. Would just be fun to be able to insert a helicopter for instance when I make a short actionmovie with my friends.