Do I have an above average penis?

My length is only 7 inches but i cant fit it in a toilet paper roll. i measured the girth and it was 6.5 inches! i read online and the average girth is less than 5. me and my girl friend have to use lube or else it feel like im raping her cuz i wont go in even when she is really wet :/ i dont wanna get a big head about this but i just wanna know. and should i try large condoms cuz regular ones are really hard to put on and make my erection wayyy smaller. thanks.