Help me decide

Two days ago I had a very heated argument with my boyfriend. We’ve been dating for year and a half, and it all started because of how far our arguments go...(it goes to the point of us fighting) I told him that we needed to change but he said that I needed to change my attitude. Which is partly agree on, I am a very temperamental person and I get upset easily and sometimes say hurtful things. But he also has faults and it didn’t take me long to mention them...he’s not patient at all and we have agreed on me trying to better myself so that my temper gets better but when I get upset he goes and says that he doesn’t see any effort in me and that hurts me.

Our arguments stress me out horribly to the point in which I have a horrible headache.

So I told him that I couldn’t do it anymore and that it was better for us to break up. Of course he didn’t accept it because he says that we can work things out. But I went ahead to point out that this is not our first break up y’all and that we needed change. He said “well I will let you think until Saturday (it was Wednesday at that moment) and we can talk more calmly about this”

What do y’all think?

Should I keep going with the breakup and make a bigger effort? Or should I leave him?