Commitment and attachment issues

Idk if I should post this in here or in a different group like the dating one, but I’ve been looking back at my past relationships, talking stages, etc. I think I’ve realized just how hard I can get attached to someone and kinda quickly too. This hurts a lot and I think this is one of the reasons I have commitment issues as well. I think seeing my brothers pretty bad relationships growing up also made it hard for me to commit because I saw how those situations can end pretty badly and effect your loved ones around you. Overall I’ve just been stressing it a lot because I really want to commit to a certain person, but it’s really hard and I don’t want her to get hurt in the process. Any way I can process these emotions or problems and try to fix them?