2 days now since I ejaculated. The first time I tried semen retention (I guess 2 ish weeks ago now), I was really horny and thought it was a huge challenge even by day 2. The 2nd and 3rd attempts, at around the day 2 mark I've been much less aroused. I had a session yesterday, but it didn't last very long. Was hard for about 30 min or so before I got soft, and had a few...