Some quotes I hope may resonate with you.
"In the long run, optimists shape the future." - Kevin Kelly
"Every action you take is a vote for they type of person you wish to become." - James Clear
"What people call stubborn isn't someone who doesn't change opinion but anyone who doesn't agree with them." - Nassim Nicholas Taleb
"Distance yourself from people that you don't want to become." - Shane Parrish
"The first rule is that you can't really know anything if you just remember isolated facts and try and bang 'em back. If the facts don't hang together on a latticework of theory, you don't have them in a usable form." - Charlie Munger
"If our small minds, for some convenience, divide this universe, into parts - physics, biology, geology, astronomy, psychology, and so on - remember that nature does not know it!" - Richard Feynman
"We should be optimistic not because our problems are smaller than we thought, but because our capacity to solve them is larger than we thought." - Kevin Kelly