Before I chat I must say I love your descriptive language. I can only picture after reading your post, your metaphoric use of 'donkey chasing an impossible carrot'....Well why don't you think of a way to stop chasing that 'carrot' as it were and grab it some other way?
I'm not an english teacher, and i'm no girl that charges $10 a minute to hear someone pour out their heart. But I like to hear what people have to say; help them out. I know how you feel my friend. You can argue that I don't, and i'd love to chat with you more and let you get this off your chest. But what your saying about that poor donkey(i know you don't mean it literally by the way!), perhaps if they are chasing that impossible carrot, then why don't you find a technique to actually achieve that goal? Donkeys may be seen a dopey, but trust me, hold more wisdom than you think.
Bottom line to this ridiculous analysis that I seem to have typed off the top of my head, is that; this world sucks. Sorry to say that. I can say one day it's beautiful and like you have a grain of happiness. But look how far you have come in life so far. Look at where you have left off. If you think/know that so far life has been bad, think how you have got through it. Think of people that can't even think of what they could have, who know nothing of what they could be. They aren't chasing something that's impossible, they are chasing something that is non-exsistent. I bet you have a load of paths in front of you. And I bet that deep down you can achieve. Don't get kicked down by this world. Think of it as an assault course, instead of a poor little donkey.
Xx