mentality for a 2/3 blind structure compared to a 1/2

[cpitt398]

Hi, this is my first post here. I have been playing poker for about 2 years now semi seriously. As of late it has become more serious and a viable source of additional income and somewhat neccersary to sustain the goals finiancially (reasonable goals)I have set for myself.
I have moved from mainly multi tabling low limit online and occasionaly playing low limit live (just to get out of the house)to the 15 30 game at the Bellagio. I have only played a 3 times thus far and am up about 400 dollars. I definitly think it is a beatable game for my playing style and ability but I have a question.
What changes should I make to adapt to the 2/3 (10-15) blind structure as oppossed to the 1/2 blind structure I am used to. Naturally playing higher limits and playing a lot less hands , each hand means more to me than before, so my goal is to play each hand as perfect as possible. I know that each game should be played the same but it is easier to make up for 1 bet mistakes in lower limits when there are multible people in each hand making the pots big enough to make a session profitable even after making small mistakes.
My worry is leaking money out of the blinds or not making the right decisions to make the blinds as profitable as possible. What was a difference of about 20-30 dollars now becomes 100-200. My tendancies towards blinds: I actually look foward to the blinds as my chance to outplay opponents or trap them with a big hand. I actually depend on this to keep my stack even while not getting hands to play. I think I might be calling too many raises though, making my sessions totally dependant on whether my blind defences go well or not. I tend to be more comfortable calling raises with small (live) cards than hands like QJ. I absolutly hate to look down and see a hand like A5. If I called some hands with live cards and all hands with an Ace or two paints I know I would be spewing away to much money. Whats my optimum play here?
Sorry so long. Would appreciate any advice from mid to high stakes players who have experience in games with a simialar structure (aggresive preflop - but not neccesarily too tight).
Thanks in advance