Camera

In life, there's always a trial and error. The good thing is that we can always take another shot. In a camera, we take a lot of pictures; but every time were not satisfied by the outcome or the result we just delete it or just take another shot until such take that is more delightful in our eyes. 

Life is not easy, we learn from our mistakes and experiences. Focus on what you want to do and want to achieve. Believe in yourself and in what you can do. Develop whatever it is that your into and in time you can give it your best "shot".