Investing during the pandemic

In my sophomore year, I decided to invest in multiple companies like Tesla, Apple, Nvidia, and many others. Although this is not a school assignment, I do consider it to be something a risk-taker would do. Long story short, I invested in March of 2020 when the market crashed, I bought a lot of different stocks with the hopes of them going up eventually. Then I waited for about a year and a half until I took the money out. I learned a lot on how the stock market works, and needless to say, I made a lot of money. After I took my money out of the stock market I was able to invest in a new computer that I built myself.