One way out of this is to not join a gym but learn exercises that you can do anywhere (e.g https://blog.paleohacks.com/how-to-work-out-with-no-equipment/ https:

One way out of this is to not join a gym but learn exercises that you can do anywhere (e.g https://blog.paleohacks.com/how-to-work-out-with-no-equipment/ https://blog.paleohacks.com/how-to-work-out-with-no-equipmen... ). And be forgiving towards yourself too - forgot to exercise for a day or a week, fine - some days are just shitty in our life - just do one exercise today (motivation follows actions). You don't have to do the full sets of exercise, if you don't feel like it. Just focus on doing one exercise (action is the fuel required to power your motivation). Enjoy the feeling. And continue again everyday.