Here because my doc suggested Paleo or Keto. Again. F/31/247lbs and never been so heavy. I'm not the type to have image issues, but the weight needs to come off because it's making me very unhealthy. I have arthritis from my days as an athlete/model, so I'm unable to exercise due to pain, risk of injury and lack of mobility. Once I can lose some weight, the doc is sending me to physio for a lot of that. 

I also have a tonne of food intolerances that are all medically documented. Because of what I'm able to eat, I've been recommended paleo, and for weight loss, keto. 

I'm just worried about taking this on because failure is hard on me, and usually means that I put on more weight than I started with. any advice on actually sticking to this would be mighty helpful.  