It is big mistake to put all your money into just one type of investment even if it is doing really well right now. You might be making much of money from Bitcoin today but what happens tomorrow or next week is never guaranteed. This uncertainty is toughest part of any investment. It is especially true for Bitcoin because its value can go up and down very quickly. That is why it is so important to spread out your investments across different things. This helps you deal with the unknown and keeps your money safer in long run. You should believe on Bitcoin but invest anywhere else too for daily expenditures. Because Bitcoin is the second name of holding.