Ah, the stress of College Oientation. Been there, done that....and, in the middle of a heat related flare...Ugh!! I was actually in remission, except, for that hot stressful time.
I am so sorry that the Steroids aren't enough to do it for you..

I remember, at the time, taking Robaxin....a wonderful muscle relaxant....and that seemed to help some and cool showers between sessions. I used a cane but a wheel chair is a much better idea....it will save you a lot of strength.
I hope this is just a temporary setback and once the stress is over, so will be, the Flare.