I prefer to take a part in long term investment because it is safer indeed.
For example, it will be safer if we buy some big coins like bitcoin, ethereum or bnb than some new altcoins.
But we need patience to hold because usually big coins price are already high, maybe few years later they will make a new ATH.
Long-term holding is better than short-term investment. Short-term investing requires you to have both technical and fundamental analytical skills and you must regularly check the market to see price movements. Short-term is only suitable for those who like to risk making quick money but it brings a lot of risks, so those who accept risks can invest in short-term.