I come from a web dev background, and spent the last 3 years running the cloud and embedded firmware teams for a 3D printer startup. I learned that hardware isn't so hard, once you get past all the mystery. My coworkers gave me tips on which tools to use, and helped me when I got stuck.

The best advice I got was "Read the datasheet"

The biggest step for me was deciding to spend money on experimenting. With a budget, suddenly it was fun to order stuff, buy tools, try things out.

Rust Book was the best for learning Rust.