I think you've pretty much answered your own question. Abstain for 2 or 3 weeks before your next encounter. I'm also guessing part of your issue is anxiety. You are probably nervous as hell so thinking about too many other things during the punt.

Maybe try finding a little bit older, more experienced WL/ML and actually explain the situation to her. You'd be surprised the things they have experienced over the years. Could also try a longer session so you can get more relaxed and a longer build up.

Good luck with whatever you try.