Oh goodness! ARE THERE ANY KNITTING EXPERTS IN THE GUILD!?
Options:
1) Wrap it around your butt, measure where it fits. Add an extra inch, trim the excess, fold the extra inch over and sew it securely with a machine so it won't fray and unravel and continue on as planned.
2) Measure the appropriate distances, Sew a little tiny button on the under side on one end and big wooden button on the outside on the other end. When you wrap the skirt around you, the big button will make it look like a stylish belt-like skirt and the tiny button which won't be seen on the outside will hold the other end more securely.
3) Last resort, do it all over again.
Tips: The next one you do, swap the length and height. Instead of making loops for the length and knitting the width like it appears you did here, make the loops for the width first and then knit to the length you want like a scarf that way if you make it too big or to small, it's easier to unravel or knit more to fix.
Queen Aryana
Ur.... I don't know.... this is how bad I messed it up...
redface