You will win some and you will lose some it’s a fact of life for traders:
There are several things that contribute to you winning more than you lose. The most important would be knowledge of the market and being able to control your emotions. The market goes up and down because of human fear and greed as we buy and sell when the market moves up and down.
People will hold on to positions too long hoping to squeeze out every last dollar (greed). Then they do a panic sell when their fear becomes too strong to stay in the position.
The following are some things you can do to remain in control of your emotions:
1.   You should have done your preparation before you enter the trade.
a.   Check for any news announcements.
b.   Check the direction of the trend; know which way the market is moving.
c.   Always use a stop.
Complete preparation puts you in control. This gives you the advantage and will allow you to trade without the emotion and not let greed get in the way.
2.   You should be in a state of impartiality.
It is important to let the market tell you what it is going to do then move with the markets movements. When you have your stops set and you profits targets set or in mind then don’t panic if the market goes against you. And don’t get greedy when the market goes in your direction just get in and out based on a mechanical processes.
3.   At any given time we only have limited control.
We as traders can only control a few things, by controlling what we can we have the advantage. We know we will lose and we will win that is part of trading. What we need to do is make good decisions based on our trading rules and trading system.
I am pretty confident that if you stick to the above rules you’ll trade with calm confidence. We all need to learn our limitations. In the beginning we need to get a feel for how the market works. Be patient and make wise decisions which in turn will make your trading a positive experience.