I'm working on my masters of divinity. (sounds fantastic - doesn't it!)  I am soooo ready to be done with school, but will not be finished until December. 
I have not been doing much lately as far as a regimen - but what I'm trying to start off with is keeping my food calories around 1200 (which usually means for me 1400 -1500... aim low and hit the mark has been my practice) and I'm trying to make it to the gym or out for a run at least 5 times a week.  
But I just started back again and nothing is consistent yet.  I went to they gym yesterday and had a good time, and right after I headed out the door today - water in hand, music going - I stepped in a hole and twisted my ankle =(  I was literally not even to the sidewalk yet.  So, no exercise today.  It isn't bad and I can walk gingerly on it tonight, so I'm hoping by the end of the week I'll be moving again.  Maybe using the bikes at the gym would help b/c the weight would be off it?  who knows. 
I weighed 175 at my highest about 2 years ago. What worked for me then was to focus on healthy calories and to limit them and then the exercise.  and water.  and I lost 35 lbs!  Since then I have slacked and I'm back up to 154 - mainly from not paying attention and getting sucked into school.  But with one week left until finals are over I think I can focus on this for the summer.  Plus - its nice out again and being outside makes it so much easier to work out.