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.