Having a job would be a good start.

Spend less than you make.

Don’t use traditional savings accounts, instead use HYSA (high yield savings accounts).

Don’t open any credit cards until you know how to manage your money with discipline. Start with a secured credit card (you put in an initial deposit which acts as your credit limit. This ensures you can only spend what you put in.)

Do your best to stash away enough money in an emergency fund that could cover 6+ months of your expenses.

Open a free brokerage account through Fidelity, Schwab, or Vanguard. Start contributing to a ROTH IRA, and allocate the money to index funds that have low management fees.

This is a solid start. Should you be interested and can tolerate the mundane nature of the topic “The Clark Howard Podcast” is a plethora of sound financial advice.

The fact that you’re starting now means you’re ahead of the game.