3D demand is only growing because browsers haven’t been able to handle it until recently.

Anecdotally, I develop webgl and the tooling is meh. Far from figured out and even harder if you want to port to React Native too.

As far as math, some is required. But mostly understanding the relationship between position, velocity and acceleration for animations. As well as sin cos and tan for viewport and triangles.

Don’t give up. Age doesn’t matter. Do a little a day.