

Interestingly, Hitler was pretty much constantly high at the end of the war. But he did write his manifesto while in jail, so he was not evil because he was on drugs, he just happened to be evil and then started drugs. Might explain some of the more stupid late war decisions.
If you want a stable future, I guess you would not pick that lifestyle. And if you worked for 5-6 years, taking a year off for personal reasons is not too unheard of. That is long enough to be trained, work productively and hand over your tasks to the next guy. Also, you could always make something up like “I had to help family members” or “I built a house/family member’s house” or whatever.