Simply getting rid of your negative thoughts does not automatically make you positive.  Getting rid of the negative only gets you half way to where you want to go.  You must install a positive operating system if you want to reach the next level and become a positive person.  It's not enough to stop being negative.  You need to become a positive person.

You don't need a PhD in psychology or thousands of hours of therapy to win the battle against depression and to move up to the next level.  But you do need to learn some basic facts.   You also need an uncomplicated strategy that is easy to use.  Finally, you need power.  When you know the facts, have an effective strategy, and real power, the odds shift in your favor, and there is a high probability you will win this battle.  It's going to be a dogfight, but it's a fight you can win.

You have a choice.  You can allow negative thinking and depression to rule your life, or you can reestablish command and control over your thoughts and push your mind in a positive direction.

It's up to you.  If you want to have a mind free from depression, nobody can stop you.

Excerpt from :

Zero Tolerance To Negative Thinking : Good-by Depression - Hello Positive Mind

David J Abbott M.D.