Everyone cries on my shoulder but i do not have anyone's to do likewise?

since i was at grade school everyone tells me their probs and i ist as best as i can - but have never actually found someone to listen to mine. Am quite stunned by this. How do i identify a kindred soul. The only times i have tried to reach out, i have been betrayed BIG TIME. I feel the need but withdraw and comfort myself only to emerge strong and ready to be that shoulder again. My stresses are secret but they are there and very real. Please give me SOLID, workable advice.