HELP CUMMING

Hey guys I’ve been with my boyfriend for a year and the sex and foreplay is great. I get super turned on wet and in the mood but I can’t seem to climax or orgasm from it. The way I orgasm is placing my hand in a fist and the groove of my hand grinds against my clit and I can finish in 2 minutes alone. However I can’t put my fist there while he’s going in and out and I’m not sure how else. I’ve tried rubbing my clit with my finger while he’s penetrating but that doesn’t work. Any suggestions are appreciated thanks! ❤️