When to masturbate?

I’m not blessed in ability to have sex regularly, and part of the reason I started PE is to actually make sex better as I’ve never been able to climax from it, even pre-transition. I want to make sure the piping still works, and I was aiming for once a week. My question is should I masturbate on my off days or on the days where I’m doing PE? I’m currently on a 1 on, 1 off schedule.

I’m not sure there is a “should,” but I would masturbate during the off days. The on days might give you less-than-perfect erections (my experience), leading you to have less confidence in your abilities. Just wait a day.

Cool, thanks! So if I do end up having planned sex, I should take that day off?

I wouldn’t make a habit of it, but yes. It’s up to you. You mention having some issues with sex, so you might want to prioritize the sex over the PE on certain days.