Normally this is a good strategy, but in the crypto market very often all currencies go up and down simultaneously.
So, maybe it's better not to bet everything on the crypto, and to differentiate with other types of investment.
I believe investment in crypto, especially bitcoin is still promising, because as digital money the prospects are very bright. The future is the world of technology, where the price of bitcoin as a digital currency continues to increase. If there is a price reduction it is reasonable because of various sentiments. But it is better if the money held is not invested in crypto all, it needs to be diversified so that it is safer and more profitable.