As hard as it may sound, but you need a timeout from Penis Enlargement to get in the mood again. What I wanna say is, Penis Enlargement is (as you already may have experienced) not a thing that happens over night and the barrier between gains and just playing around down there is in your mind. Who doesn't know the days when you aren't actually in the mood to stretch your dick or squeeze the soul outta it? The bottom line is, if you aren't enjoying what you are doing then there's no way to gain.
On the other hand you can try exactly what you did in the beginning, because you know that it worked your way up to your current size, so it has a positive effect in your mind. Or just try something new, just stick to it and you'll get where you want. I personally haven't kept a routine for over a month since the beginning of 2010, because I was so naive and thought I need to change something to speed my gains up. The things are simple: you stretch, you gain length, you squeeze, you gain girth.
Have you ever tried
hanging (I must ask this question xD)?