I felt that way a decade ago too. You may not change in the way I did. Many don't.
Again, there doesn't seem to be one formula or one right political view per age. We're humans; we're going to disagree with each other no matter how old we are.
I have a similar past to yours in regards to politics. I grew up in a very strict Christian household. Most of my childhood and teen years were spend attending a conservative Christian school and the Baptist Church it was housed in. Ironically (kind of?) back in the 70's when I was a pre-teen most of the conservative people in the Church and school were Carter supporters, because he was a Christian (and a Baptist). When Reagan came along, a small but vocal contingent were staunch Republicans and Reagan supporters. By the end of the 80's pretty much everyone was a "conservative" and a Republican. I was one of the most vocal.
When I went to college (state university) and was exposed to various views, and even challenged myself about my own Christian beliefs, my thinking changed. I don't think I became a liberal, but by today's standards I definitely am a liberal. I think what happened was that when I challenged my Christian beliefs I had a chance to refine them, be more clear about those beliefs and what they meant. I realized that while evangelization of the Gospel is the Christian's number one job, the example given to us is that we accomplish this largely by serving others, having a spirit of humility to others, showing love to others. And not just to others who we
like - the Bible says correctly "Isn't that what the non-Christians do too?" but to show love and serve strangers and even our "enemies". That's difficult. That's radical. That's not even grasped by a lot of Christians, even Christians who read those words in the Bible and then quickly rationalize a way to get around it.
Anyway, that's why today I switched from being a staunch conservative with a narrow mind as a kid to having a more open outlook where I look to God's Word first for my values, even political values. And I have to say it is the "liberals" who more closely match my Christian values. A couple glaring differences like abortion and to some point "gay rights" where I don't align with the liberals; however, I think those issues are influenced by the bigger issues regarding economic fairness and helping all those in need - elderly, children, unemployed, sick, etc.
Well, just thought I'd share with you that I feel we share our experience to a large extent.