New Adult 900g 3 y/o very aggressive HALP!!!

[wnateg]

Glass tank, AP T8, or larger tub wold be my first move. She came from a very large tank, 150 gallon.
Now, my next move 90% will say I'm wrong but it works for me. Forced handling, pick her up keeping the head away from your face. An handle her for twenty minutes or so. Put her back for three hours an then take her out again. She'll learn your not going to eat her in a few days.

I think the only disagree with this is that it's too soon. Shes not comfortable with her environment yet, so shes scared in the cage, shes scared when you take her out, then scared when shes put back.