There is a huge difference between a want and a need. Needs include: food, shelter, rainy day savings, investments, etc. Wants include: fancy meals, expensive entertainment, luxury goods, etc. If you ask your self it is a want vs need you might be surprised at the difference and how many more wants their are than needs.
There is a family who really highlights this and they describe the difference really well.
They have a book out: A Catholic Guide to Spending Less and Living More: Advice from a Debt-Free Family of 16.
This is definitely worth taking a look at for examples and tips + tricks on how to save money.
Sam and Rob Fatzinger have been on several podcasts, just type their names into YouTube to find them.