Since you choose intraday trading, you should choose a variety suitable for intraday trading.
First of all, the fluctuation of the contract should be large enough, and there is room for ups and downs every day. Secondly, the liquidity is good, the transaction volume is large, the order is active, and the trend fluency is relatively high.
There are many modes of intraday trading, such as ultra-short-term, momentum breakthrough and intraday overall trend. Which one suits you better depends on your personality. Impatient people can't do trends, and chronic people can't do short-term. What suits him is the best. We must also strictly implement it.
To do intraday short-term trading, we must have clear goals and use technical indicators to intuitively analyze the general trend of the day.