Your breakdown of the cost is probably accurate. This is the reason we stay away from academy teams. Why not try to find a team that won't have all those fees going towards the facility/owner's pockets?
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .