Birthday rant

So yesterday was my 21st birthday and I decided that I was gonna celebrate it Friday of course and I kinda am upset cause I’m paying for me and my friends to go out and I have to pay for my own cake and when it was there birthdays I paid for them a cake and food and idk I feel kinda mad that I have to pay for my own birthday cake and everyone to eat on my birthday maybe I’m making a big deal about it but I’m kinda upset about it when I brought up my cake and they said idk your paying for it not us and I was like oh okay then and i just feel upset next year I’m not going to go all out for them since they didn’t for me cause I don’t think it’s right am i mean for doing that or am I just overreacting?