Hey Tyson,
You have a great head on your shoulders for being so young. I think if you follow your neuro's orders, even if it means being a 'couch potato', you're going to come out of this feeling so much stronger. I do hope you see results of the thymectomy in 7 months, but don't get discouraged if it takes longer. It's different for everyone and took me 2 years, but what a difference it made. So hang in there during this delicate period and know we are all pulling for you!
Hugs,
Pat