I have $10,000. How should I invest it?

This is a throwaway account. I'd prefer not to ask my friends for advice or have my family see me ask for advice on my finances.<br><br>I'm currently a student and I just turned 20. Two months ago I got a new job paying $2,500/month. I just got my first check and I'm on pace to start earning over 3k/month. I've been putting about 40% of my income in savings. I have 10k so far. <br><br>I've researched index funds, mutual funds, ETFs and brokerage accounts. I feel pretty confident in my understanding of these basic concepts. My plan is to put my 10,000 here in a brokerage account, where it will earn a tiny fraction of a percent in interest each day. Then I will make investments on top of this. <br><br>The question is, how should I invest it? I am going to put a heft amount of that money into index funds and then possibly put even more of it into other mutual funds and ETFs. <br><br>But like, what's the smartest way to go about this? I don't want to just throw all my money into apple or google or whatever. Ideally I would like to invest the money in giant bundles of stocks to maximum returns. But I don't know how to go about selecting what stocks to put my money in. <br><br>Thank you.