i AM 62 YEARS OLD WITH DIABETES AND ON DISABILITY DUE TO HAVING 2 STROKES IN THE PAST 2 YEARS. i WEIGHT 220 LBS AND i WANT TO WEIGH 150 LBS.  I NEED HELP.  i HAVE A DOG WHO i WALK EVERY DAY 3 TIMES SO i GET SOME EXERCISE.  BUT i CANT AFFORD TO PAY FOR A GYM.