I’m literally so stressed and depressed about life.

I just turned 27 and it feels like I haven’t accomplished anything in life. On too of that my bf treats me like shit. I’m not even sure why I’m with him. I want to break up with him but I’m afraid I’m going to miss him. I’m afraid of the emptiness I’m going to feel once it’s over. I need to find/love myself again. Every since being with him he has made me feel like I’m not enough. I’m not getting any younger which is also stressful because I feel like I should be at least engaged by now or have a bf that makes me happy. I might give dating apps a chance but that’s also scary.