I would also like to be able to trust more, in people and in myself
Maybe you should flip those two things around and start with trying to find some trust in yourself prior to others as I think you'll be more successful in that endeavour. Then the *trust in people might also come.
Trusting others is more about them than you in my opinion. If they do things that makes them worthy of you giving them your trust then you give it. If they don't do those things, but you give it anyway, then you're being a little dishonest with yourself. That's how I see it anyway.
Yes, thinking about what you say, probably that is my big mistake, and the reason why I can't be able to trust 🤔
It's ok to focus on yourself, to work on yourself, and strive to reach a place of happiness and contentment, a place, feeling and attitude you can trust and rely upon. It pushes outwards from there.
Thanks for the advice, it's something I needed to hear.
We all need to hear that I think, or have had to at one time or another. Don't be too hard on yourself, show some kindness and open up to you. I think you'll find someone to value there.