You would do well to fail frequently so you can learn a great deal more than someone who is afraid to fail and therefore takes little risk. If you have passion for what you are doing and aim high, good things will happen even if it takes a lot of failing to accomplish them.
Accidents, failures, and mistakes can often lead us to our greatest successes and open us to our true interests. For instance, say you have a project you want to complete but you need more knowledge of the subject. So you take an evening course at a local college. You walk into the wrong class and become so interested in the subject that it changes your life.