I went down this path and after much struggle, I learned the hard way that amphetamines can damage your nervous system. My current routine is to use samatha (calmness) style meditation to promote parasympathetic activity and taking Lion's Mane mushroom to promote nerve healing. It's been a decade since I stopped taking amphetamines and its the... See more

This is the answer. Use any fleeting motivation to construct the habit. Do not rely on “feeling like it”. Once you’ve created the habit, it will feel uncomfortable not exercising.

This advice is repeated a lot, but motivation is fleeting and you just have to make it part of your routine in the same way that brushing your teeth, showering, paying your bills, cleaning your house, and so on are.

If it helps, you can think of it like "going to work". Very few people are lucky enough to feel any sort of intrinsic motivation to... See more