Need an accountability buddy!

Help! I have my engagement party in a couple of months and my wedding in a year and a half. I'm 5"2 and weigh 57kg at the moment. I reeeally want to tone everything up so i can feel totally confident and happy in a dress at both of these events. I have no self control so was seeing if someone wanted to buddy up and check in to help keep me on track? Anyone else trying to lose weight and tone up and wants to join me?