Orgasm tips or advice for bf

So I just wanna ask some help to make my bf more confident, I take a really long time to orgasm and I need a lot to get to the orgasm and my bf keeps thinking that it’s his fault that he doesn’t do well but he’s actually so good like I’m having the best sex every time we have sex like fr, but I orgasm rarely (it happened only 4 times with him) and even if I keep telling him that its me, he doesn’t trust me and keeps thinking he’s bad at it :(

And also I’ll never fake an orgasm even if it’s to make him happy I know that it’s bad

(Sorry for the grammar I’m not fluent 🤷🏻‍♀️)