My wife asks me divorce every month

I will try to be concise. We have been together for 20 years and we got married 3 years ago. Bought a house and had a baby boy 1 year and a half. Being parents was new to us and we are dealing with it as we can. Its hard since we both work fulltime but my boy is the best.

She is the kind of perfeccionist that everything is wrong except when she does it even when she never done it or know about it: home fixes and renovation. I am no expert and try to learn but I dont think I am as bad as she always tell.

Today I had a day off and I fixed some things at home and did some laundry to later found her screaming how badly I did all

I recognise a pattern and it always happen before the menstruation. Like maybe 2-4 days. She has like an hormone burst and everything is bad, I am the worst husband ever, I am a terrible person and a terrible father calling me out every bad thing in front of our child. Even I tell her to calm down and discuss later she let her anger take control.

The end of it is always the same: she wants divorce. After this burst period is over then is all almost fine again.

Its been like this since our newborn.

I told her many times to go to the doc but she refuses. She says that I am the one who needs to go to a psyquiatrist.

I feel alone and I cannot talk to anybody about it.

What can you recommend me to do?

TL;DR: my wife asks me divorce every month when she argues and I think is because hormones burst.