I had a lot of fun picking up cheap electronics from Goodwill or similar stores and Frankensteining shit together. If it didn’t work I’d use that as a point to start research. Was it efficient? Probably not. Do I have a pile of furby guts? Yes, yes I do. You might have to go through several tutorials on a subject until you find someone explains it in a way that makes sense to you, don’t let it frustrate you. Good luck!