If you are in twenties or early thirties and remain single, earn $3,000 after tax per month, you will probably save $1,000 if you, let's say, spend $500 to $800 on rental, a guest bedroom in a shared house/apartment, $500 on food, $50 on utilities, $150 on phone/internet bills, $400 on commuting costs or gas/maintainance if you have a used car, $200 on occasional entertainment or others. This $1,000 savings will allow you to invest or place a house down payment when time is ripe. Is this possible based on where you live ?
Why not, someone who can organize good financial management is very likely to leave $ 1,000 of a real income of $ 3,000 every month.
The $3,000 can be split in three parts,
1. $1,000 for savings/investment as cold money.
2. $ 1,500 for personal needs in a month.
3. $500 for other contingencies.
With an income of $3,000 you can already enjoy a decent life and can still be saved as detailed above. Never improve your lifestyle because it will drain the money that has been allocated for savings/investments. Managing financial management properly can make life better and far from debt.