Obesity is a huge health concern, and it is already awful to be in High School, I'm so glad THAT part of my life is over.
As someone who has been troubled with food for over half her life, I have some concerns...
What does "eating healthy" mean to you?
Are you sure you will be getting enough protein, calcium and vitamins? Remember, some vitamins and minerals are fat soluable so you need SOME fat.
I've found my body works best when I eat fresh or steamed vegetables, fresh fruit, meats that are processed as little as possible (preservative free, etc etc. a serving is the size of a deck of cards), a variety of dairy (1% or skim milk and yogurt, either plain with fruit or honey added or the regular kind...the "nutra sweet" kind isn't really the best for you and one of my favorites, cottage cheese, cheese too...1-2 oz at most in a serving.), drinking LOTS of water and not drinking much soda diet OR regular. Diet soda is full of junk you don't need. You DO need carbs, but LOOK at your carbs. Are they heavily refined like white flour and sugar? Look for carbs with a lot of fiber in them...check out the health food store. Me, I really love Kashi Cereal as one of my carbs, and I don't keep much bread in the house because I DO love it. So when I DO have bread, I get the good bakery bread and I have real butter or olive oil to dip it in. It's a treat. Everything in moderation is good for you.
I try to steer clear of fried and fast food. Sometimes you are better off getting the "Happy Meal" than the chicken sandwich. Look at your labels.
Please talk to your pediatrician or family doctor about what a realistic and sensible lifestyle change would look like. (I love pediatricians...I'm glad my internist also has a ped's specialty...they're nicer. ;)
The thing I most concerned about is the pills to boost your metabolism. Did your doctor prescribe these?
If not, STEER CLEAR. Most of these things are a hoax, or not good for you and just feed into this fad dieting JUNK. Really look into a change you can make for LIFE. Building an activity/excercise you like into your routine and making healthy eating choices every day.
I was anorexic and it was hell. I've been overweight by a bit at times. Now, I am just right. A good body fat %, good muscle mass and very good health. I can even look at my body and smile at it. Eating like I do I really don't gain or lose. My body regulates itself. Making these changes, you WILL lose. It will be slowly, slower than you would want it to be...but the weight didn't get put on all at once.
Don't listen to your mother about the weight, ultimately, it is YOUR body. The hurtful things she says I bet just trigger a binge. Be mindful about each bite. Eat ONLY when you are hungry. Stop when you are full. Eat at the table...or at least sitting down, not distracted by the television or computer. I know within a few bites EXACTLY what full is/will be. I'm not ever "stuffed to the gills" anymore. At restaurants, the servings are huge...maybe cut your entree in half right away. Don't ask for a box right away, that is well, weird and borderline disordered, but "draw a line" as to what your serving is, to remind yourself, and then enjoy your company.
Food is nourishment for the body AND the soul when shared with good company.
Be good to yourself. You deserve it.