Why are you doing this to yourself?

Problem is when we're in those situations of not being able to let go is because we either don't know our worth or don't know when to let go and that usually comes from us counting the pros and cons of said situations or person in an attempt to see if it's worth us or not, which is a mistake, we just gotta come to a conclusion to realize 'it' is not 'suitable' for us. It's simple as that.