If you are serious about success you will want to seek out and develop a meaningful relationship with a select few individuals who will become your mentors. Don't assume age is a factor and for that matter, don't assume a mentor has to be older than you are. A mentor is someone who has in-depth experience and is willing to share those experiences. Mentorship is not a business association - it is a personal relationship between two people who are committed to communicating with one another. A good mentor will be available to listen to you when you are faced with a problem, but don't abuse the generosity of their time.
Mentors have an uncanny ability to convey knowledge.
A mentor does not necessarily have to be involved in your type of business. Sometimes a well-experienced outsider can offer more insight and vision than those directly immersed in your industry. Similarly, a mentor doesn't have to be located just around the corner. In these days of instant communication, your mentor can be half a world away. Mentors don't automatically provide answers - they challenge you to think.