LOL, you are young, and I just found these last night from reading a different article. If you are even just a little coordinated, which I'm not, these would be perfect exercises to get you on your way. They are called Tabata I've not tried them yet but I'm going to try to, I'll have to adjust them though since I have arthritic hip.
Just google search "Tabata on Utube" , the ones I'm talking about say in big bold Green and pink (i think) Tabata 4 min exercises, same girl , skinny with dark hair and a pony tail. The thing is they are 2 cycles of 4 diff exercises that u do in 20 sec bursts, with a 10 sec cooldown/get into next position time. These puppies are supposed to up your metabolism so much that you burn as you do them and keep burning all day.
I don't know about this, I'm just explaining what I read. And they are downloadable, so you dont have to keep searching back to utube. Like I have my downloaded vids on realplayer right on my homepage.
Now for the food. When you shop, do it almost entirely from the outside edges of the grocery section. Don't do the middle aisles unless its for tea/coffee, canned no sodium veggies, frozen veggies, no sodium spices (like Mrs Dash) , water and some sweetener like Stevia (cause its natural). If you have to have a cereal, use cereals with the fewest ingredients, whole oat (not quick cooking) oatmeal or grits. Condiments with low fat, or no fat and lower sodium.
If you shop from the outer edge like this, you get fruits and veggies, meats(try to stay away from over processed meats like hotdogs), cheeses, hummus (in deli dept cases usually), milk/almond milk/soy milk, eggs, yogurts
Being thin will not make me beautiful. Beauty comes from within. I know that I am beautiful, no matter my size.