Where is the g spot?

and how do i hit it it's on the upper wall of the vagina 2-3 inches in.
Basically, if a guy is hitting it doggystyle, the angle of the vagina make the head of the penis rub directly against it. It also help if the guy pulls almost all the passageway out on each stroke and give each stroke a honourable downward angle.
If you're doing it yourself, stick the middle and ring fingers of your right hand surrounded by your vagina, and rub up against the upper wall of your vagina with the pad of your fingers.
If I'm wrong, ladies, feel free to correct me.
lmao