I'm harsh with my boyfriend and sometimes go overboard. How can I make this better?

Subject: Seeking Advice on Improving My Behavior Towards My Boyfriend Hi everyone, I’m currently in a relationship with a fantastic guy from my class, and I truly believe he’s everything I’ve ever wanted. We’ve been together for about four months, but I’ve noticed something troubling about my behavior towards him. In previous relationships, which were with older men struggling with substance issues and infidelity, I learned some unhealthy habits. While I would never cheat on my boyfriend, I find that I can be unnecessarily harsh and often don’t even realize it. For instance, when he makes a lighthearted joke that I might usually make, I get upset and respond angrily. Just yesterday, while we were grabbing food, something he said bothered me only slightly, yet I ended up lashing out at him for several minutes. He always manages to handle these situations with grace, and I’ve encouraged him to express his feelings when I upset him. However, I had a wake-up call while driving home today. During a phone call, he joked about forgetting my name because he usually calls me "babe." I reacted with anger, yelling about not remembering my name, which visibly upset him. I genuinely feel like a terrible girlfriend, especially since this seems to be a recurring issue that I wasn’t fully aware of. He often says he’s gotten used to it, but I really want to change. I’m reaching out for advice on how to recognize and stop this pattern of behavior. I truly want to be better for him. Any tips or constructive criticism would be greatly appreciated. Thank you! TL;DR: I often overreact and yell at my boyfriend over minor things, a behavior I’ve unintentionally picked up from past relationships. I want to change this pattern because it hurts him, and I don’t want to be a bad girlfriend. Any advice would be helpful!