I need advice

I just feel like my relationship is failing. It’s the best I have ever had but he has anger issues and says we argue a lot. and before anyone asks, no i’m not blaming everything on him. i have my problems too. in the past he has told me that i have problems getting an attitude with him and over the past few weeks i have improved. i’ve really been trying because i know i have an attitude not only with him but other people too. but he still seems to think we argue too much. i’ve told him i’ve really been trying but i feel like he’s going to break up with me. i don’t know how to get him to understand couples have their problems and there’s no point being in a relationship unless you improve with eachother. advice?