I have only ever gotten off clitorally.

Tbh I hump a pillow to get off. Ive tried using a hairbrush (yes sanitization is used) & sometimes I can get to a point where it kinda feels good, but then I lose that feeling and just can't find jt again. I've had sex a couple times but haven't gotten off at all. I don't know what I should try? I know they say its normal for most girls to not get anything out of penetration but??? I wanna be able to experience that, some say you gotta find the right position... I don't know. Any possible suggestions that may help me?