20 year old wanting to lose 50+ lbs...Looking for friends ar

Hey! I'm Erica. I just started today and am really trying to get healthier. My goal now is to lose about 50 lbs initially, and then try for 80 lbs. I have had Juvenile Arthritis most of my life in my ankle and knee, so losing weight would not only better my overall health, but help with the pressure on my joints as well. I have a hard time sticking to diets and feeling motivated, so I would love to add some friends around my age who have the same goals. Good luck everyone