Overcome the lie that you need more discipline.
Success is achieved more through habit than discipline. However, discipline is important in turning action into a habit, so use your discipline to cement powerful habits into your routine. Remember, a habit takes 66 days on average to establish itself—you’ll need the discipline to practice that habit for 66 days, but once your habit is established, it will become second nature to you.
Make a list of the most important habits you would like to acquire.
Make a system, that would ensure, that you really follow the habits.
Pro tip: read Atomic Habits, to get more knowledge on how habits are formed.