masturbating is better?help

Okay so I've been with my boyfriend for 8 months and up till now he never made me orgasm. He has once with clit stimulation but I need help...I have to think about other girls to orgasm😭😭It's not bad but I love my boyfriend and I want him to be able to turn me on. We do little role plays which I love but I can't have a g spot orgasm..how do you have one? What's the best position?? With doggy it becomes a bit too intense so I don't like it as much. What do you do to get a G orgasm?