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
Everyone's trading or investment management is different, and tends to have their own strategies. It's not as easy as you say, to do that requires careful analysis and research. By buying and selling when the price is 2x, I think it's a good option to minimize risk. because sometimes our emotions are formed for greed which makes losing trades. But for an investor it is not suitable, because the project is promising for the long term, the return on investment will be many times and the profit is maximized.