Positivity and Success

What effect does positivity have on success? Can you be successful without being positive?
It seems as though it would be very difficult to be successful without being positive. How will you stick to one idea and believe it will work if you are an entrepreneur? How will you work with great enthusiasm at your current job without being positive? How will you manage your life without having some positivity in it (something good to look forward to)?

You don't have to be positive all the time, it is good to challenge your thoughts and instincts and as it's a great way to become better at what you do. I have found happiness and success through staying positive a majority of the time in my life and taking some time to challenge my thoughts and ideas a minority of the time. It has proven to work for me.

Next time you are unsure of something, or a decision you've made in your life, attempt to believe everything is going to be alright. Believing things will work out in the end shouldn't be difficult if you've put time and effort into making every decision in your life. The decisions you have made over time will turn out to be the best for you, so everything has to turn out right. Right?