Best of way to do when making your Budget

Staying on track
Don't think of your budget as etched in stone. If you do, and you spend more on an item than you've budgeted, you'll get frustrated and be more likely to scrap the budget altogether.

Be willing to sacrifice.
You may have to sacrifice some things that feel important to you. But don't expect to stick to your budget if you take away all but the essentials. Be realistic.