The solution to inconsistency is to make slow changes. Anytime you set new goals, you should make slow rather than overnight changes. For example, if you were used to eating 3,000 calories before you started losing weight, it would be unrealistic to drop down to 1,800 calories from one day to the next. Instead of making this huge change right away, cut 500 calories per day during the first week, and another 500 calories per day during the second week. During your second week, you would be down to 2,000 calories and finally down to 1,800 by your third week. This slow and more gradual change would be much easier to cope with than cutting your intake from 3,000 to 1,800 right away. You should also make slow increases to your physical activity level. Rather than trying to start running, lifting weights and training for a triathlon, make smaller short term goals. For example, for your first week, try to run 1 mile, 3 times per week. During your second week, in addition to your mile runs, join a gym and workout there twice. During your third week, run 1.5 miles, 3 times per week and visit the gym three times. These slow changes are a lot more likely to stick and lead to a consistent workout.