First Time Advice

Hey guys ! I recently just tried to lose my virginity but it was a no go because for some reason he couldn't get in all the way. He got in enough to "pop my cherry" but honestly that's all. Btw I do feel like I'm finally ready for sex. I was trying my best at being relaxed and everything but it was still a no go and it really hurted and felt uncomfortable. Do you guys have any tips or advice for this situation? Has this happened to anyone else before?