This is sad to hear bro and the best thing the forum can do now is to just give a negative trust for this scammer as really they don't have any power on making this user return your money. But let us be real here for a moment since you are a newbie the obvious mistakes you had is trusting a newbie who has no reputation on having successful trades with other people this alone should tell you that you need to be cautious in transacting with this guy. When I say cautious you should at least have availed an escrow service for your transaction, if you had and the guy says no then it is obvious that this guy is really trying to scam you. Before you transact learn to do a background check to the guys you want to transact with since mods and DT cannot clean them all.