Do not do it, current investing is too risky to have losses later so buy cryptocurrencies and in that case you will minimize this characteristic. I hope you will make a right choice.
Trial & Error's work well for investors.
Terrible advice, how much time and effort does it take you to earn money? You need to spend a lot of time for it, you need to spend years in school and accumulate years of knowledge before you make any significant amount of money just to throw it away in a bad investment, if you are going to invest in something you need to be very sure that is what you want do do.
If you took the time to read a book about investing you will see that some of the first advices given is the opposite of what you are saying, those books advise you to keep your money and to wait until you see the right opportunity in the market.