Having investing discipline is another tough obstacle for many investors. Before you start investing in stocks you really need to have a game plan, and do everything you can to stick to it.
This game plan should be designed so that no matter what you adhere to the rules you set for yourself. Every new investor will at some point have a trade were their discipline is tested. The mind will be tugging you both ways to make different decisions based on what if scenarios.
This is why before you ever invest in any stock you have to have a set game plan to control your emotions. The use of stop-loss orders and trailing stops are the best ways to make yourself a disciplined investor.