Hi Jazzy,
You will be okay, like you I have some weight to lose prior to surgery on the 17th. Just do the best you can and try drinking more water. Water will fill you up temporaily. There is a brand called life water made by SOBE that doesn't taste that bad. It has some calories but vitamins as well. I have been drinking it and have been able to curb my appetite that way.
Good luck,
GiBaby