The truth is if you always try to satisfy other responsibilities before taking out your personal saving from your earnings, you will almost never be able to save a dime. Saving should be a culture and an inbred trait. Always try to take out your savings form whatever you earn before spending. This way, you will learn to see the rest as your spendable income.
No amount of money is enough, so live with what you have and strive to make more. Have a great day ahead.