The top altcoins will follow Bitcoin. Bitcoin moves up, top altcoins will rise together.
If you invest in Litecoin, and want to hold it, you have to think of Bitcoin. What will happen with Bitcoin price in future months or years (if you are hodler)?
If you think Bitcoin will have an uptrend (this year), you can hold your Litecoin. If you think Bitcoin will have long uptrend, not only in this year, you can hodl Litecoin.
Over time, Litecoin's growth has been good. Although other cryptocurrencies follow the BTC price, I prefer to invest without getting attached to it. I am always updating my investment portfolio. Which ends up minimizing some losses.