Yes!
you have made it this far with your skills, so why change.
This. A hundred times this. Whatever you did in the qualifiers is what you need to keep doing now - it worked!
Also, it is incredibly hard to completely overhaul your playing style from one tournament to the next - you are what you are.
My experience is that the other players will be sorted as follows:
60% ultra tight
25% loose-aggressive
15% wildcard
I'd try to run up against LAG early with AA, KK, QQ, AK suited and play it aggressive. Double up x3 and then settle into a more conservative stance. Take a flier once in a while with 89 suited or A2-5 suited, but never shove everything on those
hands.
Also, eff the add on - if you've played well already, it won't matter. Doubling up one hand after the break can have the same affect on your outcome. Keep your investment at $.25 and your time!
GFL!