1) assuming it is easy to make money
2) no plan for each trade
3) having the wrong habits
4) emotionally tied to a stock
5) not taking profits into strength
6) holding on to losers stocks
7) averaging down incorrectly
8) using excessive leverage
9) trying to save a losing position
10) following people blindly
11) looking at the short term
12) not investing in yourself
http://klse.i3investor.com/blogs/khgoh/130143.jsp
