Unless you have absolutely no other option, don’t work on your birthday.
Don’t let it slip past as just another routine, faceless, ‘one out of 365’ day.
This is your day, Celebrate.
Every day is special, but birthdays are milestones, benchmarks. Put enough birthdays together and you have a life, your life. It’s a day to pause, perhaps even reflect if you are that way inclined. Make a fuss, eat ice cream, have a party and get some presents, even if you have to buy them yourself. Celebrate your birthday with the enthusiasm of a 10-year-old child, ever year.