All of this is speculation or gambling, whichever words you care to choose and you could end up losing it all as share price can go down as well as up etc. etc.
This is the world that we live in and this happens with every commodity in the world because of how we are and it means that even the cash stuffed in you mattress actually increases and decreases in value on a daily basis. You may well best be served by looking at it like a massive popularity contest, so ask yourself could digibyte be massively popular and if your answer to that is yes, then keep investing but never invest more than you could afford to lose, simples!