Investing tip #1: don’t take advise from strangers on the Internet
Investing tip #2: get a zero commission trading app, like Fidelity or TD Ameritrade, and just squirrel away a bit of each paycheck/monthly/whatever into a low expense ratio, broad market ETF, like VOO (etfdb.com/etf/VOO/#etf-ticker-profile)
Start slow, but contribute regularly. Keep enough cash in the bank for emergencies, and don’t bother even thinking about trying to “time the market” - just set it and forget it.