Focus on the moment rather than obsessing on the goal. This way you show up and results do, too. Choose pleasure over pain. When you enjoy it, you do it. Balance your activities, balance your life.
Some people remain avid runners even though they limp down the street.
Some weight lifters keep the same routine for 20 years though their joints ache. Change your routine often, or your brain and body will get rigid and bored. When your body knows the routine, it uses the least amount of energy it can muster for the job. Fewer calories burned and muscle fibers strengthened. When your brain is unchallenged, it can't be bothered to create new neural pathways.