I've always had difficulty in reaching climax, and initially always had one hour bookings to maximise my chances.
Recently thought I had got over it with a couple of girls getting me off for first time with just oral
I have then been back to old problem with some girls and not others.
For me it's a combination of the physical, i.e. not emptying sacks for few days / weeks before punt
mental , how engaged am I in the punt ? whats going on in the big head WILL affect the little head, even worrying about shooting too soon or not at all will screw it up.
Will let you know if I suss a permanent fix