I always give up. Need help.

Have you identified why you always give up?

e.g.
Have you set yourself an exercise regime that is difficult to stick to or includes activities you don't enjoy?
Have you cut out lots of food items or entire food groups, leaving you a restricted diet that you get bored with?
Are you setting your calorie goals too low and getting hungry?
Are you trying to follow unsustainable fad diets?

If you can identify where you are going wrong, then it will be easier to suggest a ways to help you succeed in future.