The correct answer to this open question is the following.
First. My opinion on whether being an effective critical thinker makes decision making easier or more challenging is the following.
I really think that critical thinking is a good way to make better decisions because critical thinking allows me to analyze a situation, to contemplate all its sides, project possible scenarios and consequences, use logic and reason and come up with the best decision possible.
For instance, when I had to make a decision about leaving school to help my family to make a living or stay school to continue with my classes and academic development. It was a tough decision but I never allow it to be an emotional one. I had to use critical thinking to analyze the situation.
Second. Yes, critical thinking concepts have helped me to become more successful in the decisions I make and in my personal life. The example I had share above is one good evidence of it. The key reasoning is that I am not used to following "hunches." I like to project scenarios and to evaluate consequences, because I know I have to live with the consequences of my decisions."