I'll try something fun. I'll share how I've lost money on stocks.
I've worked jobs since I was 12. A Uncle started me on a Direct Reinvestment Plan. I added money to it and lost over four grand when PG&E got caught polluting the environment, making people sick.
I started another stock plan in Regions Bank due to the high dividend they had. The financial crisis happened in 2008 and I lost a couple grand on that.
I used to 'trade' amongst funds in my 401k. One of the Asian crisis happened and stopped that - realizing a loss of several grand.
My point is, contrary to what you see about rosy investing claims people do loose money in the market, LOL!