What is the best counter?

Sort:
migrated

Ive played this game about 2 or 3 days ago on live chess and white played a double fianchetto setup. Can anyone suggest the best defence or counter against the double fianchetto? Ive been looking around and can't find any suggestions. Nor do I know the ECO.

I don't know if I did the right moves. I know my opponent blundered.

migrated

Thank you very much!

Sconsc

Opponent missed perpetual among other things.