I can advise you NOT to sell your coins now. Although your coins are on the decline, they will rise again soon.
Since 4 years every year in January there is a "crash" or a "correction". This correction ends since 4 years every year approximately in the same month.
That means the correction ends between February and March. Now is the time to either buy more coins or HODL your coins you own.
If you want to buy more coins, then only use capital (money) that you are ready to lose. Otherwise, you risk losing money that you desperately need.
This money is called risk capital and you should never use risk capital to buy coins. If it is not a risk capital, I can advise you to buy XRP, TRX, XLM and IOTA.
As I mentioned before, the best thing to do now is to HODL your coins. At least until the end of march. I hope I could help you a little bit.
Take a look:
https://thebitcoin.pub/t/bitcoin-to-crash-between-4th-and-15th-of-january-2018/14897