@Grevantime, you are on the right track. Currently, I believe fitness and massage are capped at 80. Once you get to genius, knowledge is also capped, though it can decrease if you skip class for too long. You should have the talk with Joan on her bed or at her desk in the evening to move that along.
Remember, this game is a work in progress and new things get added every month like a whole bunch of Kara events this month.
@MikeMasters is in this for the long haul so expect new things, but don't be surprised if any particular path slows down for a while.