why don’t i enjoy sex

i don’t enjoy sex with my boyfriend. i think i’ve only had one orgasm during sexual intercourse out of all the 2 years we’ve been dating. i try so hard to get pleasure out of it but i just don’t get as much pleasure as what my boyfriends getting. and i feel bad because i told my boyfriend how i was feeling about it and he thinks that’s it’s because of him. what’s wrong w me and how can i fix it??