I was a nazi, then a social democrat, then an anarchist, then a mixture of both anarchist and communist ideas (I still like some ideas from anarchism but they lack a lot of other stuff, so eh), then now a full fledged communist tankyist who wants to have a romantic dinner with Stalin.
Honestly at the beginning I wasn't a true nazi but I was just your average person who is super racist and shit, and I also was going to school with a dude who has a super rightist and WWI/WWII fan who made be that way. Then I started reading books so I read The Communist Manifesto but just because it's an important book, it changed my mind a bit but not much, then I joined a FB group where people discussed politics and there where a lot of communists there so that started bringing me to that side, then I started to read about China and how it's not what the West tells you and here I am.
Edit: I was like 12-14 when I was a nazi, it was a long time ago.