This is indeed a big obstacle on your way to success. You need a mentor to guide you toward your vocation.
Vocation it's inside you and sometimes it's well hidden, so it's hard to tell someone, "That's your vocation!" Vocation is subtle, it's like a song only you can hear.
So, what can a mentor do for you? He can guide you.
A mentor can teach you how to identify your talents, how to remove the obstacles you find on your way, and how to monetize your vocation.
You won't find him in the pub, because he is too busy to waste his life there. But not too busy to help you, if he sees that fire burning in your eyes.
Well, I don't know you personally, but you can write me about you, and if I see between the lines that you are determined enough, you may qualify to be mentored by me.
No matter who you are, what's your past, what others believe about you, you must not be normal. Normal is average and banal, it's that 95 % of helpless zombies that populate our planet. You have the potential to be extraordinary. It would be a shame to stay banal.