Short-term and long-term depend on the time cycle
If you want to do long-term, that is, one year, then look at the monthly K
If you want to do medium-term, then look at the 3-day K-weekly K
If you want to do intraday short-term, then look at 1H-4H
The market of each time cycle is actually different. I think it is better to look at the cycle you are doing. Some people advocate looking at the big and small. Everyone has their own opinions.
