To focus on Holding also requires analysis, when to buy and when to sell. It's not easy to do Holding if money management can't be done properly. Short term or long term both have advantages and disadvantages. Some traders prefer to make short-term trades because it is fast enough to make a profit, but it requires good trading skills, strategies and knowledge.
and a strategy that is really effective and safe is to do DCA, it will be better to apply it in the long term, so that it will accumulate more and more assets and when the price rises there will be more profits.
This is a good observation, often I see newbies that believe that in order to hold their coins they do not need to do anything except buying and keeping their coins for the long term, and while for an inexpert eye this may seem like the totality of what a long term holder does, this is not true, a long term holder also needs to know about how the market moves and the best moments to buy in order to maximize their profits and minimize the risks they take, otherwise holding their coins will become incredibly difficult for them.
That is true only for a specific group of people who have either bought at a higher price or have money in spare to buy more when the time is right, but those who have bought at a very good price and will all their capital are not really supposed to worry about any of that, and all they need to do is to hold on to their coins for as long as they can.
For example, if I have bought Bitcoin at $28k, but I still have some money left, when the price goes back to $25k or something, it will be wise for me to buy more. But, if someone has bought at $17k, and has nothing left to buy more, even if the price goes back to $16k or something, they just need to hold and do nothing else.