The very first wrong decision he took was to sell his house to invest the money in Bitcoin which is never recommended option no matter how much potential Bitcoin has. One has to only invest what they have as spare money into things like cryptocurrencies because there is basically no guarantee as to when you might get something on top of it or even get your actual money back since the market is extremely volatile and unpredictable as well which makes it difficult for everyone.
And then he invested or traded the money in the market without gaining any knowledge beforehand which is basically the recipe for disaster for a newbie. You cannot gain profits from the cryptocurrency market if you don't even know how the market works and how you can do all the things.
bitcoin trading becomes very dangerous for those who lack knowledge, but sometimes we feel like we want to act immediately, so we don't miss the moment. therefore the things that need to be considered in outline are bitcoin being the main choice in investing, and patiently holding it until a bull run occurs, I think if beginners even though they have little knowledge of practicing it will be safe. the problem is that people tend to get dazzled by new projects that can pump up thousands of percent