I Need Help With My Diet. Freshman From Highschoool?

so i eat A SUPER LOT and i am not that fat but i feel like i have kim kardashian’s legs but a little fatter but i need to start my diet now. i am a freshman and my body is pretty skinny except im growing more belly and leg fat… tips…. and no machiens please cause i dont have machines in my house. i am a freshman and i weigh about 114 pounds and i feel insecure all the time so please help me!