I am optimistic 2019 will be better than last year because some coins will get big investors and bitcoin too. the news about ETFs is what I'm waiting for if it's approved, maybe there will be a high increase as when gold gets ETF approval
for ETFs like that it doesn't have an important influence anymore but maybe the one that will give a strong influence is the existence of a halving day in bitcoin which will have a strong influence to make the bitcoin price recover.