As a new ref I agree with much of what is stated here. I do a lot of MS and F, both girls and boys, and do find them different to manage. Not necessarily harder, just different.
My toughest adjustment is the coaches and fans and tuning them out. Also agrees with the comment about some (few) senior officials. Many feel F and MS games are beneath them and don't treat us newer guys "too well". Some have really taken me under their wing and really tried to coach and mentor me. It is greatly appreciated!! Others just don't know how to pass on constructive criticism properly. I learn from them too!
Today, I did a 12yr old boys rec game with my mentor, who has done hs for many yrs. We had an absolute blast! He has taught me a great deal and I hope I can pass it on in the future!!