My step dad compared his life to mine

My birthday is this Sunday and I’m turning 24. I already feel so lame as so many people are married and have kids and a career and I’m currently single (by choice) and waiting to take my schools exam. Got into an argument with family and my step dad said when he was 24 he had his own mortgage and was married. And I said “Are you still with that person are you still living there? No you’re not”. That’s apart of his life and there can be teachable moments, but don’t compare me to what you were doing at my age. I fucking went to hell and back just to end my last engagement which my parents have no clue just how hard I fought. I even tried having a kid with my now ex and it didn’t work out. Birthdays are already a touchy subject for me and I hate how every year a day or 2 before my birthday some argument happens, my birthday comes around and everyone is so cheery and here’s your gifts, then the next day everyone is so low and back to how it was after the fight. I’m done with this shit. I literally want to cry but can’t and just hurt. It’s already bad enough to feel so behind everyone and then just have your own step dad cut a new and deeper wound for you