I'm going to go against the flow here. I was in nearly your exact scenario. I had been in sales for around 6 years, made 6 figures 4 of those, ran my ownoffice, was a distributor, etc. etc. etc. I decided I didn't want to do that my entire life, went back to college for a career change. I have an electronicengineering associates degree, which got me nowhere. I started at FL as a part time associate to have something to do. I had saved enough cash the previous 2years to take 4 years off work to finish school; but I got really bored with just school.
So, I'm working 10 hours a week or so. Had a visit from my DM, he offered me the same MIT position you're talking about. I said what the heck, I'lltry it out. I ABSOLUTELY love working there. I have NEVER had a SINGLE day I didn't want to go to work. As a GM, you're gonna be around 40-45K a year;not really a very good salary to be honest. But I'll take a 45k a year job I love over an 80K job I hate ANYDAY. You're gonna work a minimum of 48hours a week; Xmas time up around 60. Not sure about your situation, but I'm married, my wife makes 80-100K a year; we own our home out right. So the moneyisn't really an issue.
As long as you are mature, a good manager, good talent scout, able to get your job done because you want to be the best, then it's a great job!
Just realized I forgot to add that I'm 30 as well.