thanks for the advices.
In fact, I don't have only LTC and BT
I've also some ETH, LSK, XRP, OMG, ARK & ARDR
But, LTC represents 35% of my portfolio and BTC 19%
That's why I was wondering if I did not have too much LTC
in my opinion, if you invest in ltc, it means you are go with long term and should not worried about the price. if you know before ltc has increase, its only 0.003xxx btc equal $6.xxx and now the price reach 0.01xxx btc equal $50.xxx and it need long time before its reach $50. for short term litecoin doesn't give any good price but I think ltc is stable and its in top ten in the coinmarketcap.com.
the other coins you have is good choice and you might thinking to add more eth and xrp for a long term investment too like ltc. for lsk, omg, ark and ardr, I think you can go for daily or weekly or monthly.