When I hear "free thinker" I think of Kanye which lately gives me PTSD. I think a good policy is rather than just taking stuff as it comes, it's a good idea to deep dive into history and see where it's coming from. Thankfully with the web it's easier to do that than ever, but books are still the best resource. I think if you're at times frustrated by the liberal and conservative orthodoxies, a quick read on their history that frames what 21st century agitation for change could more sensibly look like is Ill Fares The Land by Tony Judt. It's a good primer on what happened over the last century or so on multiple fronts and is only around 150 pages.
@peter_weyland can lend you a copy as he's been reading it for about 6 years due to spending too much time stoned and being a bet welcher.
I consider myself a free thinker.
What that means to me might differ fro what it means to someone else though. I believe that anyone who labels themselves a democrat, republican, conservative, liberal, etc etc is not a free thinker because they have chained their though process to a team/group/party. People who labels themselves are slaves defending the label they have chosen and they are no longer free thinkers, they have to defend a Trump or a Hillary, a Hannity or a Maddow.
It's like sports. I was a Jets fan, every year I'd say,"next year we'll get them", even though anyone with a sense of reason would see that was bullshit.
If people would put away their political jerseys and just vote for people they think are good, decent, smart, moral men or women, we would not have the Hillarys or Trumps to choose from. You'd also make these politicians work for your vote. These politicians right now know that no matter what they do, their base will support them. That thinking of theirs is our fault, because it's true. Registered Republicans/Democrats will mostly support their party regardless of how much they lie to us, how much they steal from us. As a people, we have enabled these politicians, we've practically begged them to lie to us with our blind loyalty.
Only way to fix the country, to stop the corruption in the system is for the people to stop with the party loyalty.