You do not need to have a mentor before you can become successful in life. There are many successful people in life that does jot have a mentor.
Some people only like after a role model and they may want to be like such people and work towards it.
But know that success is not about having a mentor or looking after someone as a role model. It is about how smart you are in achieving successes. Opportunity and exposure are also very important.
I won't say your words aren't actual intellectual,but In everything someone's needs to do in Life basically he or she will need a mentor or a guideline,but they're alot of people whose started from Zero without a mentor and become successful in life ,but still there's a guideline In between because even our parents are our mentors and guidelines, because no one learns anything just by himself.