I have never seen bitcoin doing this well in my entire cryptocurrency days (I have been around for over 6 years now). The point is not that it has been an amazing 2018 but the point is whenever bitcoin gets lower there is always a a pump in the works. Which means since it has dropped amazingly than there will be a time when it will go up as well. Since it has dropped so far it means the turn is on the going up part right now.
I have always loved undervalued stuff, it could be undervalued stock or real estate or any other investment method out there and I always went in for it. I think bitcoin is insanely undervalued right now and it will recover and get high a lot. For that to happen we need another hype and that is coming around with these new ETF talks as well. As soon as one ETF gets accepted all people will try to buy bitcoin, from smaller investor to big banks everyone will try to get one.