Congrats on your good fortune and success early in life...! Thank your lucky stars you won't have student loans. Soccerluv gave you really solid advice. Some additional thoughts...
In my opinion, your primary focus should be increasing your income. In addition to increasing your skills, proficiency, and value in your career field, monetize one of your hobbies so you can have side income. Reject "lifestyle inflation" as your income increases.
Your secondary focus should be decreasing your expenses. Write out a list of all your monthly expenses and minimize, optimize, and/or eliminate as much as possible without feeling deprived. Use software such as Mint to track every single one of your expenses and your net worth.
Other suggested reading:
- Bogleheads Guide to Investing
- Bogleheads forum
- Early Retirement Extreme by Jacob Lund Fisker
- TheMinimalists.org