I'm glad to report that there has been some progress on the dress. It's actually pretty far already and I should definitely be able to finish it for thursday. I tried to take the pattern of a dress from my wardrobe but that didn't work amazingly well. However, with much adjustment I believe it fits me now so it's all good. It looks a bit frumpy in the picture because the back is still open.
Still to do:
close the shoulder seams
Hem the lace neckline and the straps
actually sew the skirt to the top (it's currently just pinned)
hem the black layer
put in the zip (I'm dreading this so it will definitely be done last...