Meta plunged 45% in 2022!!!!

20% of my portfolio is in VOO, which is an S&P 500 ETF. Advised to do this by Buffet because it has best 5 year performance over time.

I didnt know I owned Apple, Amazon, Facebook. S&P 500 weights these at 6.85%. Yikes!!!!
I am soooo glad I did not own individual shares in any of these FANG stocks or tech stocks.

Meanwhile, a reviewer says of VOO that the index actually makes an investor more impervious to such mistakes: