I still have a lot of Altcoins left in 2018 and I haven't decided to sell it. Because I also still suffered heavy losses. But this is at my risk when holding lots of coins. I will sell it when the market has gone up and now I'm sure the market will come back up again.
From last one moth you would have recovered a bit of the losses as market in this one month has risen and some of the altcoins have also risen. It will depend if you hold those coins or not or which coin you have purchased and how will they grow in future.