keep me on track!

I just turned 24 and weigh 144 and I'm 5'1. My sister is getting married next spring and my goal is to be down to 115-120 by June. I need help staying motivated to be healthy. I've tried getting my sister and best friend to join me, and they're sort of supportive, but when I mention them getting involved, they completely ignore me. They both complain about being overweight, so it's not out of the blue or insulting. Im looking for friends on here that will do more than just add a like to my status. I want someone to actually go to my entries for that day and give me some accountability for what I did or didn't do. I also think it would be fun to add daily status challenges like add to your normal workout by doing so many push-ups or walk a mile. Anyone interested, add me!