[protoserge]

You can try taking next season as a volunteer role instead of going cold turkey. I don't know where you are going to grad school, but I'm sure there is a way to work out a great volunteer role in that area. You'll still get to see FRC and it is a lot less stressful and just as important for the competition.

I think you know what you have to do since summed it up by stating that taking courses again with your mentoring would have "killed you".

As mentors, we care a lot about our teams. It is OK and healthy to admit you cannot handle the stress anymore. In fact, I think it is a very acceptable thing to do. We are all volunteers, after all. I know I am in a similar position and may take some time off after this season due to many upcoming life changes.

The best advice I can provide is that you need to take care of yourself first, but don't forget the responsibility of setting in place a plan for someone to take over your responsibilities. I am sure the other mentors will provide plenty of help in this area.