Riding him!

so me and my boyfriend have been having sex for a while now and i really want to ride him, he really wants me to ride him but i’m so nervous. i don’t want to embarrass myself, like what if i don’t do it right or what if i hurt him? what if i don’t even know how to do it? it’s really making me nervous because i really want to but i keep overthinking it. does anyone have any tips please?!