What do you want to track? Write down your regular monthly payments in a list and tick them off when they come out. If it's irregular spending you want to track, then write down each spend and allocate it to an additional column (groceries, petrol, child expenses). Add up the columns each month to see your spending by category. So your columns at the top would read for example: Date, Vendor, total spend, Groceries, Petrol, Child expenses. New page every month (or payday).
Even simpler would be cash envelopes per spend area, or an account for each area - card for groceries, card for petrol, card for kids etc.
Add up your periodical costs (annual expenses like tv licence, car insurance, birthdays, Christmas etc.), add 10%, divide by 12 and put this amount aside every month. Keep a list and monitor the amount.
Write down all your unexpected expenses (new tires, washing machine repair etc.) in the year, add 10%, divide by 12 and put this money aside.
If you don't have enough money for the last two items, you need to try to bring more money in or stop more leaking out. Regular expenses need to be kept on top of, but the real killer is usual the variable spending - the groceries and the bits and bobs here and there (coffee, work lunches - financial death by a thousand paper cuts).