10 years ago on Feb-4-2014 Satya Nadella took over as MSFT CEO. I know he was behind Cloud and was a moving force behind Azure. In the last 10 years, the stock went from $40 to $400, a true 10x in 10 years.
Error of Commission is mistakes you make. I made the mistake of selling all my microsoft shares on 10 year high of $40
The above chart is the reason it is very difficult to be a long-term investor or true buy and hold investor. Sometimes your patience will be tested for a decade and at most inopportune time you will end up selling.
Error of Omission is failure to act. When I realized it is a mistake to sell, and Azure will propel MSFT, and will be a strong competitor to AWS, I failed to buy back MSFT. Multiple times I bought and sold for some inconsequential tiny profits, but never established a core position.
Sometimes it is important to listen to your inner voice. To be a successful investor you need to overcome yourself.