I think litecoin did its job well, looks like you are just looking for litecoin price appreciation to achieve your own goals and you are not satisfied with litecoin because the price is not what you want. Looking at the top coins of Bitcoin's contemporaries like bitcoin cash, Neo… I see that LTC is doing better than all the rest. LTC is not hyped but it is slow growing and steady, low volatility, I see LTC as a safe haven during bearish times along with bitcoin.
I have some LTC so of course I feel disappointed that while BTC and ETH are trading above the 2017 ATH levels,,, LTC is barely at 33% of those ATH.
The old dev/founder Lee also made his promise good,,, to stick around until price reached old ATH, which it did, but it never went up higher.
On the other hand, LTC is the silver of crypto, the silver to Bitcoin as gold. That never changed and still has a loyal network. I think those are way better than the 'gone tomorrow' shitcoins.