Automate your savings
Set up automatic transfers from your checking account to your savings account.
This way, you won't forget to save, and you won't be tempted to spend the money.
Cut back on unnecessary expenses
Look for ways to cut back on expenses that are not essential.
For example, you could cancel subscriptions that you don't use or switch to a cheaper phone plan.
Avoid debt
Avoid taking on debt as much as possible.
If you do have debt, focus on paying it off as quickly as possible.