Forget about what’s normal for getting over a fight. You know what’s not normal? Getting into a screaming match with your partner every month.
I really can’t stress enough, that’s not ok. Not a healthy relationship, not a safe environment for your children, and not a good example for them to follow in the future.
You need couple’s counselling ASAP because this pattern has to stop.
The exception is password managers. It’s a very rare tool that makes things more secure and easier.
Your OS probably comes with one, and if not there are cheap or even free ones available.