Where do you want to get to? It could be getting promoted, passing an exam to get a qualification, it could be gaining a certain amount of money.
Why do you want that? This will help keep you going when the times get tough. Even if you stumble, it will act as your guiding light to get you back on track.
But the most important questions are needed to distil a habit:
What would a person who has already achieved the things you want BE like? How would they act? How would they think about things? What would be their outlook on life? How can you be like those things right now?
What do you think they would do each day? What would you need to do each day to be like them even if they do not need to do them each day? What would it look like if it was easy? Start with the smallest daily thing that you will be able to do no matter what. No matter if you are ill, if you are injured, if a crisis happens and you have no time. Something that is so small that it seems insignificant. Something that you are likely to do more than necessary because it seems too small.
Consistency over intensity is where habits build into greatness. Day by day by day. This is where the real change happens, inside yourself first before others will ever see it. This is where your focus should be.
Do the exercise. Find your habits and then get your head down and commit to them. Look up occasionally to see if you are still going in the right direction. Check in to see if your 'why' is strong enough. And then get your head back down and work.