Relationship anxiety but good progress?

Hi everyone.

I just wanted to write in and chat about this, I’m 24 by the way.

So I’ve always had this problem when dating, which is relationship anxiety. I get into a relationship and after a few months I become this anxious, paranoid girlfriend. I have self destructive behaviour in relationships where I’ll get really scared incase hes going to cheat or lie and I’ll do things to try and prove that I’m right, like looking through his history or checking his messages (if his phone is around and he’s not). This is speaking from past relationships. I’m single at the minute.

But a couple of months ago, I stopped looking for things I knew wouldn’t be good for to ‘look’ for, and even though it’s tough not to give into addiction of the self sabatoge, say looking at an exs page, or his ex pages, I came to this realisation that I was never aware of before. the reason why I do this, is because I make these scenarios up in my head that aren’t even true,that seem very believable. But I think of the worst possible case scenario, and before I give myself time to really think about it and question it, I just believe my thoughts and jump to conclusions.

Is this good progress that I’ve become aware of this. If I question my thoughts and don’t jump to conclusions or not to ‘spy’ on their privacy. Could that lead to better relationships for me?