How do i orgasm more often?

maybe TMI but i don’t like masterbating because to me it doesn’t feel that good and i have sex with my partner almost everyday but only cum like once a month?? someone please help! it upsets me and him since he feels like he’s failing and i’m not reaching orgasm. i don’t really like vibraters and when i have masterbated it’s been riding a pillow and that’s the main time i can cum. i just don’t know what to do😣