Early stage aggression

I've been trying to play much more aggressively in the early stages of MTT's in an attempt to accumulate chips early. Is this too much?

10+1 Party MTT NL Holdem. Blinds 10/20 w/ around 2000 players left. No big stacks at table. Hero is in LP w/ pocket Queens and approximately 1000 in chips. I have played only one hand so far.

UTG (t1100) raises to 100.
MP1 (t1200) calls.
Hero in LP reraises 900 all-in.

Too aggressive? If so, what spots do you look for to double up early? Or should I not be so dead set in doubling early and play more conservatively?