It starts from the mind

Romans 12: 2 Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God's will is—his good, pleasing and perfect will. NIV

The mind is one part of the human system that controls the rest of the person. Whatever we achieve, in the true sense of achievement, starts from our minds. And if we fail in anything, we must know that that failure started in our minds. That is why we must take control of our minds.

Whatever your mind says is possible, you can achieve it if you don’t give on the way. You may encounter difficulties but you will find solutions to the problems that come up. 

If you want to change something around you, change it in your mind. We do things that our minds tell us are good. If you change your perception about anything, you will start reacting to that thing differently. This happens to us most of the time unconsciously. For example, we refuse to eat certain foods we liked in the past when we hear about how dangerous that food could be to our health.

We can take control of our mind by consciously telling ourselves what we want to do. If you have a tough task to perform, tell yourself it is easy. Your mind will find easy ways of accomplishing the task. But if you continue thinking about how difficult it is, you will never achieve anything.

Take control of your mind and you will succeed.