Yeah, before you buy a coin make sure that you have researched it and make sure that it is good for a long term investment, buying without researching is such a dumb thing to do, dont put your money at risk without even researching because you will lose it right away, hodl for a long term in good crypto coins with the use case.
everyone must research before buying crypto assets, especially for long-term investments. Of course, without taking a bigger risk, we must choose top market assets. because of the period of 5 years, we will not know how the market conditions for that long time.
only projects with good planning and market power we can be sure will last that long. BTC, BNB, and ETH I think will be good choices for the long term.
Doing it the right way, by researching and studying how the assets will work with your target time frame. It helps a lot to manage holding your coin, knowing that even it will take that long the progress will continue,
It's between your trust and how you really understand the project and what are the usages that offers to adds up to the success of this industry.
Placing your money where your knowledge really good at, that will lead you to pick the right project to invest and hold for tha long term -target.