Does anyone else feel this pain??

Flower🌸

I'm in a 4 year relationship..and he's abusive... all the signs are there, I watched all videos on warning signs. I'm being manipulated, gaslighted, guilt tripped and sexually pressured to do things with him and much more..And I'm trying to break up with him but I can't because I still love him😢 I have so many memories with him and we built a life together..there are good but it's mostly bad......and I tried and I tried to tell him what he's doing and it doesn't help..he won't change when he says he will. But I never have the strength to leave him. I have so many doubts. (What if I can't find anyone to spend the rest of my life with? What if I get cheated on? What if I end up alone? What if I get karma for leaving him? What if I made a mistake?.....what if he's the only one..?) I just don't know what to do😢 my heart feels so much pain and I feel so lost..I have my family support but Its a feeling like I'm the only one going through this. What do I do ??💔