Just holding some altcoins that I've bought in a higher price and buy some potential altcoins in a cheaper price, this is what i do from now, and hoping that the market will rise again.
Now a day it is good to wait because price has too much chances to rise. So all of us should buy some profitable coin so that holding will give good money for future. In this situation no one should sell or quit because it can decrease your profit. Same as you I will try to hold my coin and will try to buy more in future.
now it is so good to have many assets in the crypto world, and now the market has begun to recover from the decline that occurred from this year. well, I hope, at the beginning of 2019, prices have started to improve and at that time, we had many assets.