Need a literary agent for my short stories

First of all, I’m not a published writer yet. I am seeking for a literary agent to promote my short stories to the publisher considering the genre. I would say that the genre is realistic life story, drama, maybe young-adult… The first sentences of one of the stories are right here: “Merely some short time ago Mark almost became renowned all over the country. But he seems not to be oppressed at all by the unexplainable abrupt failure he met with. Not to be oppressed by its consequence either – his present poor and undistinguished way of life. As though it suits him fine. Actually his life had always been quiet before his success, and it never seemed he wishes different for himself. Thus, the reserved boy’s childhood was passing unnaturally calmly. Even in his early school years Mark rarely spent time after school on the streets in noisy gangs of his peers, but mostly sat in his room, playing in solitude. A child psychologist would have probably said that he was imitating his father, who, working as a translator of books, did not have to leave the house too often.” This one is 3000-words long. I have 3 or 4 stories that I’d like to publish (2000-3000 words).