Don't get too frustrated if you don't get promoted right away.
I've been hovering in the top 8 of my league the entire season. I've got 62 wins, and I'm winning more than I'm losing according to sc2ranks, yet I'm still in bronze.
I've heard it's the toughest league to get promoted out of and I'm starting to agree with that.
But I know if I just stay patient and keep at it I'll be promoted soon enough (took a break for the last week and a half or so). You know, if you're in high gold 1v1 you're in something like the top 10% of all players on the EU server. So being promoted to silver is a bigger deal than most people originally think, imo.
Not that silvers are necessarily that much better than bronze, but still it's a nice step in the right direction and means you're better than over half the total players on that server. (75% ish iirc)