If you want be an achiever the battle start in your mind. The bible says in Proverbs 23:7  As a man thinketh in his heart, so is he so is he. One thing that i have learned over the years is to always have a positive mindset. My reason is simple my mood and my behavior is controlled by the thoughts that i put in my mind. So each time i am not feeling okay i make sure that i feed my mind with positive things like the Word of God. When ever i encounter challenges i tell myself i can do all things through Christ who strengthen me. So in reality we react to the thoughts that we have in our minds about anything. So if you want to see change start changing your attitude.