Extra tissue in vagina

So I'm a virgin but I have a boyfriend of almost 8 months. We are in a kind distance relationships so we often do have see each other as much as before. However I have expressed to him that I'm ready to have sex, btw im 20 and he's 21. He came over to visit last month and we almost had sex. We made out and then he tried to put his dick inside me. He could barely get the tip in and it hurt me a lot. I understand that my first couple times it would hurt but he couldn't even get it in. We did a ton of foreplay and he went down on me so I was pretty wet. Anyways we talked about and I said next time I won't do it unless we have lube.

I been masturbating for a couple years because it helps with my migraines. When I finger my self I feel like a loose tissue inside by the entering of the vagina. It feels like what a vagina feels inside on the right side. It doesn't hurt. Could this be my hymen?

I know that some girls bleed when this breaks and some don't. I just want to know if that's my hymen and if it's the cause of why my boyfriend couldn't get it. Also he's like 6.5 to 7.5 in long wich I guess it's also another thing to consider.