Hi, I can relate. I am sorry for you pain. I kinda prefer to forget birthdays too for many reasons. They are actually one of the worse/unreal days of the year for me personally and I have no idea why we celebrate them. Years ago to take the pressure off of that single day (pressure which I can't stand) I took to celebrating the whole month in small ways. If I want to eat out, or have a slice of cake, or buy myself something small that month (more or less) I do. I don't disappoint me and I am happy to celebrate me. Letting go of expectations of others around these things helped me a lot. I have one relative I wish would stop making such a point of sending a card or gift. If not for this I could skip that day and forget entirely it I like. It's weird, after saying that, but I also have another friend I share the birthday month with and we sort of take turns (in the years we remember) with wishing each other a happy birthday on each other's day and that is quite enough. I don't mind if this person sends me birthday wishes. We jokingly say "you're the best" and have a laugh and go on. That is enough for me!
Lastly, may I say with all sincerity, Happy Birthday! You are special and bring your own special light into the world.