Penny Tracker

I am 22 years old, and I have no idea how to invest and what to invest in? Ira’s, Mutual Funds, Money Markets, Stocks?
No Idea at all, I dont even know where to start, I would however like to do it Online in the privacy of my own home. So I am looking for some good tips on where to start, and I also don’t have much to invest being a recent College Grad. Any help or tips would be appreciated
Thank You!