Hey Sean, i don't really have anymore tips etc as i have given up going down the rotary route however there is a shed load in the rotorheads section
With regards to age i would post in that forum ( i don't think your age matters as long as you still have the grey matter to get through the groundschool exams but this is only my opinion) or send the school an e-mail and as i remember they answer really fast.
Good luck
