i guess u need to wait till ur rating goes much higher.
kinda easy to reach platinum there in NA.
i can say average platinum there like a hi-gold player here.

i find it interesting to play NA, im able to play with diamond/plat regularly.
im improve! i guess coz im learn from what they "throw" at me and adapt.

p/s sea still better but i cant play against diamond or high plat -.-".