Looking for a diet buddy(s)

Hello,
I have been trying for a year to lose weight. I do great for a few days and then fall off for a few days. I have planned a special trip with my daughter and need to lose at least 50 lbs in the next 61/2 mths in order to enjoy this trip and just feel better on a daily basis. My ultimate goal is 85lbs over the next year. I would like to find someone that is looking to lose weight too so we can keep be accountable to each other and offer support, encouragement and new ideas. Im a 45 yr old female. If anyone is interested please let me know and together we can come up with a plan that works for both of us. Thanks!