Angel, This may sound silly but I want you to go to a bookstore and find the book "Oh The Places You'll Go" by Dr. Suess. Yeah -Dr. Suess. Its a kids book - but it has a very adult message that I think is apropos for you at this time in your life. Read it! The first time I read it I got misty eyed. What you have to understand is that sometimes you just gotta suck it up! Its okay to be sad, its okay to be self conscious, it okay (sometimes) to make poor decisions - what is not okay is to relinquish control of your life to these other things. So people laugh at you at the gym? So what? So your mom is ignorant and naggy - tune her out or listen to her and know that she has no idea what she's talking about. As for excercise if your knee is hurt- exercise with your arms. You have options - you're just too focused on obstacles. You never mention in your post if you've even lost any weight. YOU have to be in control of your destiny - that doesn't mean you'll have the best control all the time. But you have to be responsible for yourself. You have to own whatever decisions you make and persevere through life's mishaps. Good luck! Hope you enjoy the read!