Investing is essential for anyone who has the desire to live a comfortable life. Investing is also a good way to get passive income. Personally ,in the past I've never tried to trade, but a friend told me about this source https://tabtrader.com/articles/what-is-a-trendline where I read more about what is a trendline. You can also earn money in this way. I think trade is indeed a profitable business, so you can consider joining this industry in the future if it remains relevant.