The importance of a mentor
"I must admit that I personally measure success in terms of the contribution an individual makes to her or his fellow human beings." Margaret Mead, Anthropologist
Mentorship or mentoring has long been a tradition of humanity. It is the way we learn naturally. Mentors do help their disciples or students to fast track their learning curve and thus to acquire knowledge rapidly and using efficient ways.
Finally, as Jack Canfield (video provided) suggests that you do not give up in your dreams of finding a good mentor. He says that you shall ask questions and follow their steps and suggestions. You also need to correspond and help your mentor-- and be thankful for their help. Besides that I would ask that you listen to your own insights too. If a person tells you constantly that you are a failure, don't follow them, because, they do not know how to guide you. They may think they have good intentions, yet they are putting you down and down with 'their good intentions'. Those people even if they have been given the role of mentor/or have successfully mentored someone else--are not a good match for you. Know that everybody has a gift, and you are not an exception. 