How to stop getting frustrated and acting stupid

Hello, I have been in a happy relationship for 1.5 years and I deeply love my partner. We are great together and I look forward to a long future together. However, I do have an issue which I need to get fixed.

It seems that every week something will happen and I will get super frustrated and yell something at her. This mortifies me and I have tried and tried to stop myself but I just can't seem to. This time it was just that she was sad about something and was not responding to me at all and I got frustrated instead of being kind and compassionate I said "Can you just ######6 tell me what's up". She rightly got very upset.

I consider myself someone who tries to do their best and believes in equality and feminism and every and I don't know why I keep on behaving like a jackass. I was wondering if there is any tips that people have on how to deal with this? I am looking into possibly talking to a therapist about this. I hate the fact that I make someone I love sad and that I do this. It is shameful and wrong.

Any help would be greatly appreciated.

Thank you

Maybe taking a big breath while counting until 10 before acting might help. It's something simple but I think overlooked.I think it's beneficial to let emotions pass and act more clear-headed.

That's a good tip and I will work on it.

Anything else?