If you already own your home or you're locked into a lease, you're pretty much stuck with that ũ귔 payment. Consider relocating when your lease expires to make your budget more manageable or take a look at your other "needs" to see if there's a way that you can reduce any of them. Maybe shop for more affordable insurance or transfer the balance on that credit card to one with a lower interest rate so your minimum payment drops a bit. Your goal is to be able to fit all these expenses into 50 percent of your take_home after_tax income.
Finally, do it again. After you have completed your first month of budgeting, it will be easier to plan for the next month. At the end of the month look at how you spent and make adjustments for categories in which you spent more than you planned, and cut back on the categories that had additional funds in them.