I would find a personal trainer/therapist that is familiar with your conditions to try and get you on a small exercise program, they have all kinds of programs out there for people with special conditions so it is basically just a matter of finding someone who knows what they are doing.
You seem to eat ok but things like peanut butter and jelly (assuming you eat it on white bread) are what is killing your goals.
If anything is sounds like you are not eating enough if a bowl and cereal and a PBandJ sammy is all you have eaten by the time you sit down for dinner.