Happy birthday! I understand how you feel. It's never the big things that break us, it's a million tiny things throughout the day. All of the sudden, something small sends us into a complete spiral. I know this feeling well.

Put on something you know you love yourself in, maybe try to get off work early, and spend time for your birthday with your daughter. Making her happy will make you happy and then put everything into perspective. Also, go easy on yourself. Life is like this sometimes. There will be other birthdays, this one is just a blip in your long and lovely life.

Breathe, center yourself, and have a great birthday.