Earlier quoted context omitted.
For this, what takes a while is to just tinker and fry components several times. Get a breadboard, get several sensors, try to design something and iterate on your design. Plan to fry sensors and IC's. Also helps to read some basic electrical theory and know what the role of different components are. The way I got proficient is with hobbyist PCB design. What helped me is starting with schematics and datasheets and pl…
This just reinforces the fact that it's inaccessible. There's no way I'm literally throwing $200 a month in the trash on a hobby.
Burning a part is incredibly rare with this kind of stuff, if you're willing to put in the time to learn about it before actually building it.