I was wiring my Japanese Maple & because of my stubby fat fingers and elephant type strength...I nearly snapped my secondary branch off

When my heart started beatibg again, i grabbed some twine and bandaged her up.
a) will she survive?
b) if she does, how long should i leave the twine on?
c) Should I wait before I wire it? Or am I ok to go now whilst its bandaged?
And most importantly,
d) what is the best remedy in this scenario & and is it too late to carry it out?
This is the first Japanese Maple I have ever owned and have no clue about them...except for what I have read.....but I forget all that once in the garden
