De niño, celebraba mi cumpleaños en mi casa con mi familia y primos y con un pastel hecho por mi mamá.
How did you used to celebrate your birthday? It could be at a park, your home, or at a pizza place.
Personally, I used to celebrate it at home with my family, cousins, and a home made cake.
I hope it helps. I just recently signed up to be a tutor.