But did you consciously set out to have a different political mindset than the one you had at the time? Because that's the only thing that matters (in this comparison at least).
Mine too, but it took years and a fairly complete change of people I interacted with and longterm exposure to various ideas and life experiences. It was not a decision/choice. This kind of change is a long process of learning new ways of thinking and abandoning the old ways.
It helps that I live in a country with more than 2 dominant political parties; it lets me think in shades of gray (rather than in black-and-white).