So, I've said before that I lost over a hundred pounds over the course of 2 years. I used to be 300, but have been holding steady at 193-195 since last May. It's a comfortable weight, so I just stopped really caring about trying to go down more. I just ate random stuff, walked/jogged whenever, and held steady there.
The problem is, the weight loss caused an amount of stretch marks and loose skin. I tried going to a gym last August. I was fine for a few weeks, and then school started. I kept up for about 2 weeks and then it fell apart, and I stopped going as often, and quit. It was mostly that school and work was pulling at me so much mentally that I couldn't get myself to go to the gym since it wasn't something I was overly interested in.
So, 2 weeks ago, I went to visit my old doctor because he just wanted to see how I was doing. It wasn't an appointment. It was just a walk in to say hi. He told me though while I was there that I really needed to get into resistance training or else I might need plastic surgery if it doesn't work. The way I see it, the only I could likely do it is if it's during a time where I'm not both school and work.
I'd rather look for something I could do at home, but I honestly have no clue about that stuff. I wouldn't know where to start. I just have this feeling that if I could find a routine that works for me, I could fix this problem quickly. Any suggestions? What does a complete newbie at this stuff that wants to do it at home do?