I've never gotten off?

Journey • at this point I'm trying my best but still screwing up¯\_(ツ)_/¯
I haven't had a TON of sexual experience (only 16 here) but what I do have I have never had a guy get me to orgasm. I can get myself off fine but for some reason guys can't. Is it something about me, or being around another person, or is it just that they all sucked?