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building habbits is not an easy task, they require change and change creates friction. but not all changes have to create friction and systems are ways to slip in changes into your routine in a way that the resulting friction doesn't cause bruses.
for example, i have some gym equipment at home and i tried doing some exercises myself but i couldn't do it regularly because it was just too boring doing it alone. so i joined a badminton academy. i just have to go there and rest happens on it's own, some days it's matches, which is fun, and some days it's a lot of running and training, which is less fun, but with people around, it's doable with some chats and smiles and screems :).
i have a few rivals now, so i am careful about what i eat at home as i want to build a good physique to match thier level, i jump ropes when i am waiting for my turn on the court. one good system can create a lot of positive feedback loops. i haven't stated the other benifits of sports.
another system i built recently was that of timelogging. previously i used gtimelog to track the time spent on work tasks, but now i log my activities as well to see where the day went exactly. i am not micro managing anything but i am now conscious about where i spend the next 30m or 1h. time is the only constant you can't change :).
Systems like these, paired with the ability to make steady progress, allow you to get the maximum value from your time.