help, unsure about my relationship

What do you do when you’re unsure about your relationship?

I’m wondering whether it’s going to work in the long run. We’re fighting a lot and having these small arguments and sometimes I feel like I have to step on eggshells to not make him mad or annoyed. He also has a girl best friend and their friendship makes me uncomfortable, but he still hasn’t done anything about it - like taking a step back, even after I told him that I didn’t really like them being so close.

I don’t know if these are things that can be worked on together, because I would really like for this relationship to work out. But at the same time i’m wondering if it’s going to be worth it.