Best Tip :
Calculate your mandatory outcome for the month and remove it from your income.
For the remaining , save half of it for monthly saving, then try to live the month with other half of the rest.
He's right, calculate your income. Do the needs and wants, buy first your needs in order to have the more useful things and if you think it can save more money, do it. Make sure you have saving or bank account that'll help you get more advantages on what you have save or invest.