This is going to take a while, since account recovery is really slow… But there is hope: @theymos is changing the recovery procedure and it should be rolled-out soon, which should cut the waiting time a hell of a lot. Meantime, review @sncc’s
[Guide] Bitcointalk account security to see the recovery procedure in depth.
Note: This post should really be placed in Meta. You can move it yourself (lower bottom left of screen).