can't seem to orgasm

Molly
Okay so I'm 16, currently with my first boyfriend (7 months now) hes amazing in bed and all so it's not that but I just don't orgasm?? Maybe I'm not persistent enough or something because I can't even by myself. I don't tend to feel like masturbating that much anyway. Anything sexual I or we do I love heaps and it's fine I just feel like I'm missing out on this huge thing ? Should I keep trying or is something up