Well, it's impossible to me given my natural born level of habilites with this kind of work, and the time I would need to invest to learn how to do it properly. Because it's not just a matter of buying some device and do it, you need to learn by trial and error, add more and more physical tools to your toolbox, have the dedicated space where to store and try all of it safely etc etc
Depending on the field you want to gain knowledge it can mean: “famous last words” or “missing body parts”.
Nothing against the spirit of learning and challenge one’s skills. But especially people on YouTube show of quite dangerous things and sell them as everybody can do it. My list here:
Metal / Wood work on a lathe with off center or unbalanced pieces in a 3 jaw chuck.
Playing around with lithium batteries to build bigger battery packs (DYI Perks did this and even though he mentions the dangers of doing that (fire or electric shock) it’s still inspires people to do the same in their living rooms.
Then is playing with chemicals.
Again I’m not saying don’t do it. But one should ease into things not just grab a random set of chemicals and disassemble a laptop and hook up a power supply etc by just following a list from the internet.
Also, the way you acquire the knowledge, expertise and tooling is by screwing around with stuff where you have no idea what you’re doing.