Comment by AdobiWanKenobi

Don't do a degree or two like I did. Just build shit, get yourself a 3D printer and some electronics, and again just build shit.

The only maths you'll need at the beginning is basic control engineering (PID Loops), forward/inverse kinematics and Extended Kalman Filtering. The only other thing is maybe V=IR, anything else and you're just placating some professor's ego.