Dave,
You should have a fun time learning all the little quirks of sailing uni! Look thru these threads and you will be able to pick out the good stuff.
As far as boat handling and racing, you will have to get out and sail! As you have already read from the threads about downwind sailing, you will have to develop a different mindset than the Infusion. Again, it's all about time on the water, no easy buttons!
Bob