Good luck volvo hope all going well! We have an Emmeline, but I have to warn you that if you intend to use the full name, you/she will continually be correcting for "Emily" - something which drives me potty! The name regularly gets mispronounced too - (the "line" as in straight line). Only choose it if you love it and happy to continually correct. If you're going to use Emmy/Emmie (like the OP) on a day to day basis, I guess it doesn't really matter though!
Hope all progresses quickly for you!
OP, I definitely agree that Emmie is not a strong enough stand alone name for an adult/teenager with attitude though!