Well, everything is in your mind, So If you use it intelligently you will succeed, else, you will fail to achieve your goals.
Your mind does not differentiate between negative and positive thoughts, it just executes what you think and It accepts any message from you.
I will simplify my idea by an example as the following:
When you send a message to your mind and you tell him "The merit system is not working with me, and I cannot get any merit point "
Then your mind will execute this message or command in reality. And you will not be able to get any merit point.
"Your mind is a powerful thing. When you fill it with positive thoughts, your life will start to change."
-cavett robert
ohhh dear, the guy just wants to get some merit.
sorry bud, I would give u a merit but I can't.