Bitcoin is the only coin which can give you huge success than any other coin as you know that bitcoin price was such low then most of people desires to make investment and buy coin and now you can see those people who are  in profit just because bitcoin price fluctuates but it does not implies that it is bad coin and investment in bitcoin is not good. I suggest that keep eye on its worth and if you think that is good to buy or sell then do it as it is most trustworthy coin.