My advice?
Try and keep the tree alive, do nothing else for now, let it recover, it needs massive growth, let it grow, don't trim it, don't wire it, just let it grow. After a year or so, if it lives, then start practicing pinching, pruning, wiring, slowly, watch how the species reacts, learn.
Just kidding

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For a beginner, I would have found encouraging words, but since you are not, I'd say OK, the roots are twisted, but it looks as if it had two trunks and that each has a life of its own. I would select one, and cut the other one, you don't need two trunks in a cascade, do you?
After all, maybe letting it grow for a couple of years wouldn't be a bad options, the selection of the best trunk line would be easier I think.