How do I overcome anxious attachment

I realize that I struggle with anxious attachment a lot. I have a hard time committing and opening up to people, but as soon as I do, I’m constantly scared of losing them and as soon as they act different I begin to become anxious about losing them. I feel this primarily with my partner. Though I know every day can’t be amazing, any time something is slightly off I begin to panic. I don’t make this known but it eats me alive. I’m aware of what it is and I know I’m overthinking but I can’t take control of it.