Am i doing something wrong? Or is something wrong with me?

I have been having sex for over three years now with my boyfriend, and sex is honestly almost never satisfying or comfortable. The only position I feel some pleasure in is doggy style or any position that's behind me, other than that it's rather painful and just not comfortable. Is there something I need to do to be more comfortable? We do foreplay and even use lube to help sometimes and it really just doesn't make a difference. And I encouraged him to try going deeper to see if it would feel better and everytime he does it just hurts plus I bleed like I got stabbed in the vagina. Please help me. 😞