One good mentor could be more informative than a college education and more valuable than a decades income.
Help mentor somebody.
How did you learn ? Who took their time to show you?
Remember that school, college and books are good but nothing beats on the job training. All the books do is give you a running start but no matter what when you come out in the real world your real education begins.
How do you work with others?
How to learn personalities and how to work with them?
How do show simple respect?
All things that you cannot learn from a book or a class or a video.
If you consider yourself somewhat of a success, if you think you learned a few lessons the hard way than pass it on to someone to maybe save them the heartache or the head banging.
Yes, you do have something to offer, something very valuable..experience.