People don't want to give projects some time to grow, they forget that coins like dash, litecoin, Xmr, Bitcoin etc have a rough start, I'm just saying crypto investment takes years, just because a project drop in value doesn't mean they won't grow better in future.
Projects don't just turn huge in a year, there will be lots of volatility and price loss, for long term hold be prepared, if you can't then go for top coins
They have their own timeline on their whitepaper, many investors are looking on the whitepaper to see the development of the project if they meet it or not it was not needed time for them they have development on process if they didn't meet it, it means you should find another project that you are going to watch out.