I'm not sure that altcoin and bitcoin will continue to decline. I am very confident that the price will recover, I suggest buying more ethereum if you are still interested in making short-term investments in crypto currencies.
Not to talk that ethereum will always be a choice beside bitcoin. If you believe that this year would be the same as last year, you could buy bitcoin instead of ethereum. But to think it logically, the chance for this year to be the same as last year is quite low.