No one can really advise you since we are not financial advisors but from a numbers game if you sell any crypto down for something that is equally down, it should be a good play, especially if it gets worse and youre more confident in the new investment, youll be more likely to hold and not sell at a bad time.. I personally am not in NEO right now but kept my GAS since its the more rare resource and will be valuable if it really takes off. I personally really like Wanchain and NULS but whatever you invest in has to be your decision.