Welcome to Sythe man! Selling accounts could be hard as a newcomer, so I would suggest taking part of the community at the same time, as well as getting some vouches in other parts of the forum (like User Services). I would also suggest to use a middleman. Goodluck on your business!
People are really skeptical about buying accounts here, so it's pretty hard to get a fair price as newcomer. Try and rake up some vouches first, then sell your account.