Help !

Im so so so frustrated and confused because i am in a relationship, and im still rather inexperienced but i have been doing more and more with my boyfriend. And i have never felt anything good, i mean he has only really fingered me but it feels like nothing. And i feel nothing when i do it myself too and im so so so concerned. The only way i have gotton off is if i grind on something and thats it? I know its really strange but dont know what to do and any comments would be much appreciated haha