On the second part of the question is, when will I have outgrown my current board? I read reviews online at Burton Clash Snowboard Review
which states its good for the very basics of turning down, but won't help learn how to carve a turn. I also bought the board in a 151 (I think a 155 is more for my weight) so it would be easy to learn on.
I'm not saying the board is the reason why i can't progress, but does it make it more difficult? at what skill level should I get something that's better? Or should it be fine for the rest of this season?