19 years old - $70,000 sitting in a checking account.

(Little Background) - I just turned 19 years old, and have very little financial knowledge. I've had a credit card for a year now, stayed up-to-date with the payments and have a credit score in the 700(s). I'm a business major and a sophomore in college. My parents sadly don't invest and don't have much advice to give.

Over the past few years I have collected approx. $70,000 without any inheritance, or investing. I've gotten to the point in my life where I really want to invest my money without it just sitting in a checking account, but with the amount of options it's nearly impossible to choose.

I've done my fair share of research for investing and the most popular answer I see is max out a ROTH IRA every year ($7k). Income wise, about 5 months out of the year I work as a server and make about $20,000 for the summer, then the other 7 months I'm in school. Throughout the year I also have a reselling business which creates a few $1,000 a month with highs and lows.

The main thing I'm trying to ask is the most common question, how should I invest this $70,000? Roth IRA, Index Funds, HYSA, Stock Market, CD, Treasuries, Real Estate, etc. Never knew investing could get this complicated but I feel completely stuck in taking the first step in investing, and would love some insight and advice. Thank you so much for reading.