Hi Heliplates
I was ready for my first solo circuit after about 12 hours but for one reason or another I didn't actually do it until 22 hours.
It isn't a competition and doesn't matter if you do it sooner or take longer than anyone else. The main thing is that you are safe and comfortable and enjoy every minute!
I remember after climbing away on my first solo I looked across at the empty seat and just started laughing out loud and singing to myself (I was quite excited). I then swiftly got back to the job in hand and made sure I flew a great circuit. The one thing which took me by surprise was just how much I had to lower the lever to get myself back into the airfield!
Have fun, it's the best flight you'll ever make!!!