Habits are a fantastic thing when they serve your goals.
Things like working out.
But replace that good habit with the scroll of death, e.x wasting time on Facebook/Instagram/Twitter threads.
At the end of the day, you wouldn't want to go to bed with a feeling you wasted your time, right?
There is the opportunity to automate things you otherwise would miss. Automate your decision making. Make your day as boring as possible for at least 60% of the time.
You will know when to go to the gym, what to eat and what needs to be done that day, maybe even what new things you will learn.
The rest can be flexible and yet with the flexibility brings the choice, would you will waste it on things that make you look and feel bad?