GETTING MARRIED!

hey Guys,
Ive been on my fitness pal for a few years.
But one minute i am Super motivated and excited then next minute.. I see food i Love and oops i forget i have 20KGS to loose.
Ive been trying to loose 20 KG for a few years now but like i said i let mysefl forget..
But now I am getting married OCT/NOV 2013 n MUST lose this 20KGs
Any help and motivation would be greatly appreciated!