The importance of HODLing and long term investing in the Cryptocurrency space

I am a staking pool operator in the Cardano network, and many friends and acquaintances are asking my advice or informing me when they buy/sell their positions. Of course, as an SPO my personal interest is that they never sell so I get more chances to produce blocks and get the rewards. But I also care for my friends and delegators, I want them to be happy…