Think about your goals differently. Simply saying I want to lose weight may not be the right way to think about it. Set fitness goals, like being able to do a certain amount of pull-ups or run a mile under 8 minutes. These are fun and competitive goals!
Setting SMART fitness goals will help you actually achieve success plus it will make you feel SO great about yourself once you achieve your goals.
Your goal should not be vague, like lose weight. Why do you want to lose weight? But- like I said I would set a specific goal like doing 5 pull-ups.
You need to be able to measure your goals and results. If you want to lose weight how much? How many minutes should that mile be?
Take responsibility for your own goals. Tell people about your goals. How embarrassing when the whole world sees you not achieve it, right?
This is probably the most important. Your goal needs to be realistic for yourself. Can you achieve this, considering the setbacks you will have? Can you achieve it in the time you have given yourself? Think about past goals you were able to achieve and past goals you were not able to achieve. The goal needs to be realistic and not overwhelming for you.
Give yourself a deadline. A realistic one. See above. Not achieving your goal exactly in that timeline is OK but it will motivate you to keep going. Remember it takes time and patience to see results.