Unless someone is taking notes on every trade he make, itis hard to track especially if you are trading lots of coins and are on the go everytime there is some incoming pump to happen, or dump to occur. As of me i never take down notes but as far as i can recall am on the positive earning though there are some loses, the winnings or earning from trading is far more.
Therefore it is advisable to focus only in few coins so you can make the right research, do not just believe in what others are saying as FUD happens, you have to be smart especially when the amount involved is a big amount of money.
Its better always to select only few coins rather than investing money on all coins which you would really huge money on it. And also dont ever believe on the words of the people especially on the trollbox because they are just promoting their own coin and tend only to get more investors.