Based on the understanding and knowledge of following up with the cryptocurrency for the past 6 month, my inference is that the cryptocurrency is highlt volatile.
Is it a good approach to stay invested for long term in the altcoin space?
It is a good approach I will say. If you've gotten your capital, which is the major thing for investment, then you can hold for as long as you can. The good thing about altcoins/tokens is that you'll always get back your capital, and there must be some profits that will be gotten too.