Trading based on past history of price fluctuations is the financial equivalent of going to the roulette wheel and putting your money on black because the ball landed on red three times in a row. Day trading on the theory that past fluctuations or a current trajectory will be repeated is even worse.
Institutional investors seldom beat the S&P 500. If Donald Trump had simply invested his inheritance in an S&P 500 index account when his father died instead of investing it himself, he would be far richer today than he is.
https://assetbuilder.com/knowledge-center/articles/THE_TRUTH_ABOUT_DONALD_TRUMP_AND_INDEX_FUNDS
The only good stock market advice anyone can give a lay investor is to have a diversified portfolio with your stocks in a low cost S&P 500 index fund.