hard time getting motivated

Man, if I were close I'd install the bushing for you. I turn 50 next Friday. Got a bad right knee, bad back, sore joints. Hurts like hell sometimes to get up and down underneath my Duster. I work on a fleet of cars and truck on my regular job, then come home and gotta work some more! Geez! I take the GNC joint pack for my sore joints and it works wonders! A little yoga and stretching helps. I hit the weights too. Not too heavy, just to keep the blood and circulation working. Anybody close to this guy that can help him?