Start learning robotics

Hi,

I’ve always been interested in robotics and IA and now, I’d like to practice. I would say that I almost know nothing about it. I know how IA works and I have few bases of Python. I know few things about robots hardware too but not enough to build a robot on my own. I’d like to start building but I don’t know what to choose first.
Any advices ?

PS: Sorry for my English, I’m french