Budgeting

Ok..today I decided I was going to have to put myself on a budget. I have tried this before and have failed miserably. I have no willpower whatsoever. But in the last month of working(I hope)...I know that I am going to have to get used to little to no money(not that I make a ton now or anything).

Where do you get will power? Whether it be for budgeting, quitting smoking, giving up sweets..etc? I'm just curious.