If your question is not answered in the FAQ's then please do send me an email with your specific question. I have no way of knowing what your abilities are through an autobiographical email. I often get an email from someone who says they have, say, ten years of electrical experience. This 10 years could be ten great years with a variety of work types, or the 10 years could be the first six months of house wiring twenty times. There really is a difference.
Some people take apprenticeship.
Many do not. Some people do not know what the NEC is and others are experts. Some people did not finish high school. Some are even college graduates. What is important are the results obtained on the Diagnostic Exam.