We all want to be rich in crypto space, I get it but there is possibility that what we want to achieve may not come to past when we plan only to hold coins and tokens for years but how about
Buy a coin and hold like you intended but take profits when the coin shoot up like double Profit up to 2x and buy back when the coin dumps, crypto is like a circle, there will be pumps and there will be dumps, in that process of taking profits and buying back you will end up wining both ways, whatever happens you won't entirely lose out.
Think about it
Well the process that you have been mention are already been done by many and may fall under Trading
and you may call it the Buy and Sell.
These process can be also classified into two long term and short term. For long term the trader will hold on to a token/altcoins or any other cryptocurrencies specially bitcoin and etherium for an extended period of time.
And for the short term trading may last within few minutes to several days.