Welcome to the Sythe community. There's prett much only three rules here: don't scam, don't troll, and make sure you read tr stickies xD
Good luck with your gold selling, the best way to sell is by player auctions. Or gifts through paypal (these cannot be charged back) I reccomend starting your sales low but not too low around $0.60 a mil is fair enough. Some people sell at $0.70 or eve $0.80 but 60 cents is more reasonable and you will find you will fit in more.
I now I'm just a newbie here myself but I'm just warning you, DO NOT trade with people who say " I want to buy 100m but I don't want to go first , let's do it in 20m increments" they are nearly ALWAYS scammers just out for a quick 20m. Secondly don't go first unless they are trusted. And thirdly use an OMM (official middle man) there are heaps of free ones and if you use one it nearly impossible to get scammed.
Other than that welcome to the online cheating community bro