Bitcoin growth again, for two days it's turn back his position 3960$ and continue to grow!
Should I go to bank and buy bitcoins?
You should have bought it when the price is low to maximize your profit. But since bitcoin is gaining grounds again, it may not be a good buying point. However, if you have funds that you are willing to invest, then my all means get it before it goes to $5000 again.
You just have to remember one thing, do not panic once you see that bitcoin price is going down. Its one thing to buy it, another thing to store and not be nervous seeing that you are loosing your money. Goodluck.