I don’t feel your thinking is flawed. Your reacting to situations because of things you have gone through. That’s true for most everyone.

For instance my husband is much more trustworthy of new people he/we meet .. he will trust them until they give him a reason not too

Me, I feel trust should be earned. I’m leery of what motivations they could have. I can’t just blindly believe everything.

There is so much going on in the world..... I often just get overwhelmed turn the tv off put down my phone and just go play with my dog.

Can you make a change ? Yes .. it will require you to start interacting with people. While talking you will probably have to remind your self to stay grounded and actively try to NOT file that person into a catagory right away .. This is difficult. I have not mastered it or use it very effectively yet, but I am not sure I need to change myself. I think if I click with someone that’s fine if I don’t ? That’s fine too.