What should I invest in?
If you’re like 95% of people, your first move should be
Pay off all debt. The best investment for most people is not to be paying out insane rates for debt. Before you can start saving and investing pay off your debt. The best return you will get at this stage is simply through not paying debt.
Set up a rain day fund of at least 3 to 6 months expenses. 6 months is the best, but you should always have at least 3 months.
Begin saving a minimum of 15% of your income. Max out your 401K, Individual Retirement Accounts, and tax advantaged accounts. Remember that a dollar saved in your 20s or 30s is much more valuable then a dollar saved later and that every dollar saved could be $3 or more dollars in the future. Retire early via learning to invest and save.
You didn’t tell me what to invest in. The vast majority of people should not try to purchase individual securities but should purchase Index Funds.