I'm not 25 yet but this is my (current) course:
1. Reduce all bills/belongings to bare essentials to live minimally.
2. Pay off all debt while maintaining $1,500 emergency fund.
3. Save 6 months living expenses.
4. Invest in yourself with excellent groceries, gym membership/local park visits, medical/hygiene care and other healthy habits.
5. Invest in Vanguard's Total US Stock, Total International Stock and Total Bond ETFs (% as age) and don't touch it.
6. Invest in building your own business - tech or otherwise.