If you want to be a successful investor in the stock market you need to the apply theory of good strategy. This helps to protect your invested money and earn returns.
I would like to share a famous quote about that stock market, ''Investing in the stock market is simple, but not easy.''
Remember, to achieve good returns enter this market with an equal amount of passion, patience, and discipline in you for the investment. Apart from the physiological factors, you must also be prepared well with a sound understanding of the market and a bit of research capability.

I have found an answer for you that may help you make a smart short term investment in the market: