Shape animation for a beginner, can you help with a couple of questions?

Question

Animation

I have such a question
- I really liked the shape animation (ps in animation, I practically understand nothing, I have never done it). So I want to start learning this type of activity and make money on it in the future, and more specifically on shape animation.
Please tell me:
1) what you need to study first, what kind of base you need to have, so that as a result there is a complete understanding of what and how I will do in the ShP. What should be the foundation (for example, classic animation) and what else
2) for some reason I have a fear that you won’t really make money on the ShP, if it’s all in my head, then give examples if you can, please, where you can earn on it and how much, I just really like it, but there is fear, that as a result there will be little demand for it, and I wasted a lot of time. Dispel my fear please