I've been low libido for so long that I basically feel like i forgot how to have sex.

I'm finally feeling up for the task, comfortable in my body, even just in the mood in general.

While doing the deed, my gf (mtf) helps me explore where that sweet spot is. We find it and i can go for a little bit before I can't take it anymore and I ask her to stop. Its almost like it hurts? But it feels good. I feel like i can feel the pressure building, but I can't get that release. I don't get close enough.

We found out that based on her curves I've gotta be on my back, or riding cowgirl. Cowgirl I can do but I don't always hit the spot (and my body starts to hurt.) And I think we need one of those pillows for when I'm on my back.

But yeah... how do I just... do it? I'm 34 years old. I should know how to make myself climax by this point.