Firstly, don't be pressurised by the fact that some people solo in 15 hours or even 50 hours, it makes no diffence.
A good instructor will not worry about getting you solo by X amount of hours, but when you are ready and have proved you are able to. A good brief on the differences in handling technique will ease your mental workload during the flight.
All in all, enjoy the experience, you will only do it once and remeber your experience for when you are sending your future students on their 1st solo.
TiP
