I have similar problems in that I start a lot of projects but only 'finish' some - in that they find some natural resting point. In my job I grind but for work

I have similar problems in that I start a lot of projects but only 'finish' some - in that they find some natural resting point. In my job I grind but for work that is just for me I stop when I stop having fun. For self care I try to work in strength or cardio training daily. Grinding through training or going for a hike with a weighted backpack sucks but 'grinding' here tends to translate into staying power when 'grinding' elsewhere and you can easily titrate the difficulty with the weight/incline/distance. Building discipline is like a muscle - it has to be exercised.