Repetition is key
Habits are formed when you repeat a behaviour over and over again because this repetition can eventually help make those decisions easier. Remember, it often takes some time before a new healthy habit is formed so be patient with yourself.
For example, if you want to make
physical activity a daily habit, you could start by setting a goal of walking five extra minutes every day. This could be achieved by adding a walk up and down your street before or after work, taking the stairs instead of the lift, or getting off the bus or train one stop earlier. As you begin to repeat this small behaviour daily, over time it will slowly become a habit and part of your routine. You may eventually want to increase this to walking an extra 10 or 15 minutes a day.