Cut out. Lots of us pay for things we do not even use. This is another mistake that gets easier to make with so many automated payment plans. Do you keep a gym membership that you do not use? Replace that with a brisk walk, weights, or a stationary bike. You will not have to make monthly payments, and you may find it is more convenient.
Your next task is to identify all your expense areas whether they're irregular or not. Set up two columns for each pay period (as shown below); IMAGE NOT AVAILABLE HERE The first column called "Bdgt" is the portion of your income that each expense area will be assigned. The total of this column should never exceed the income you receive for that period. The second column "Used" shows a negative amount and is a record of what has been spent from that period. The beauty of this system is that it will always give you a running balance.