Welcome Country boy, and thanks for joining us. The JP90 is pretty intense. I suggest starting at half the reps, and slowly add until you are doing the full routine in about a month. You have a large penis so try to accept that. As to performance anxiety, I suggest focusing on your partners body. Starting with the northern set of lips. Stay up there kissing and only move south slowly. The more time you spend on fore play the more worked up she will be, and the more you will see and feel the great time you are both having. This should help ease your mind. Relax and enjoy, sex is fun not a performance. Good luck fellow country boy.