Nothing wrong with having a training plan and goal. I know personally I have pushed too hard and too long only to get fatigued and have to essentially start over. The key for me is to listen to what your body is telling you. if you have been training hard for three or four days, you need to rest and cross train. accumulated fatigue is a bigger concern for us then it is for younger folks. I have found that heart rate monitoring is beneficial in helping me get adequate rest and not over train. it’s nice having the time to devote to our passions after so many years of family and work responsibilities. The downside is a decline in physical strength, endurance and ability. balance and a realistic understanding of our capabilities will prevent injuries and over training . our focus needs to be participating in what we love before performance.