How can I try and save my trumpet tree? I winterized it like it said

Libby Ellis
by Libby Ellis
But it doesn’t look like it is going to survive. I have it in full sun and Plenty of water and cut it back like it said to has it in a dark area of my garage and it never completely dried out, so what is your suggestion??
This is my trumpet tree my cousin bought me last year at plant show!! Help me please!! I can root about anything, but don’t know what to do to this to help it LIVE!!
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