My anxiety is driving my relationship into the ground.

I've been in a long-term relationship for four years now. We've struggled with communication issues often but fought hard to get better at it and make it work.

I used to be really bad with suppressing every little thing that upset me, until something would trigger a full blown panic attack and all emotions would come rushing out. It's quite draining on myself, and my boyfriend who expressed he feels frustrated and helpless in the situation. Probably worth mentioning he's struggled with depression for a while.

Now I'm working harder to bring something up for discussion when I'm upset. Even if I think I'm being irrational, dramatic or whatever. A large part of my anxiety stems from invalidating my own feelings. But still it takes me a while (couple hours after incident) to calm myself down, assess the situation, and determine if it's worth the potential argument/ruining the day.

Does anyone else's anxiety prevent them from properly addressing relationship issues? Ironically my tendencies of worrying excessively cause much more anxiety for myself every single time.