Many people saying 'live for the now', which is totally valid, but there's an alternative as well, which is the path I followed - devise a concrete economic plan for your life (5 year plan, 3 year plan, etc), and track ALL your spending until you have a strong grasp on how you like to spend your cash.
It's hard to make more money, so do everything you can to reduce spending in your life. No only will you increase how much can put away, but you'll need less to sustain yourself when you reduce how much you earn, due to the cultivation of a spendthrift life.