Looking for Motivation!

Hello! I'm 20 (turn 21 next week wooot!) Looking for some motivating friends to hold me accountable! I'm trying to lose 20 pounds, and this is my 3rd attempt at calorie counting! I weigh 145 and I'm just trying to get down to 125 pounds. I lose motivation pretty quickly and then just give up. Hence why this is my third attempt. I struggle with chronic back pain AND chronic knee pain which makes it hard for me to keep it going! Let's be friends and keep each other motivated through our journey! We can do this!