There are evidence based tips from behavioural psychology you can use to help. Some examples…

Will-power is a finite resource in the day, so if exercise is left to the end of the day then it is easier to leave out.

If you keep your exercise clothes laid out then it removes that barrier and makes it easier to get up and go to exercise. When I get home from work I change straight into gym clothes even if I’m not going to work out for another couple of hours.

Keep a TV show/audio book that you are excited about, that you only ever watch in the gym. Then you can never progress the story without going to the gym.