This is a wild one, but I had a meth addiction for about 5 years in my late 20s. During this time I would tweak out on electronics, computers, soldiering, hacking threads and pretty much anything related to that. Skip forward a couple decades and I am a pretty well paid engineer that’s a senior level in his field. I honestly feel that having that time to really focused and tweak out on that stuff helped along my career. (Once I stopped doing that poison)