You're brave to take over in the kitchen at 14! I'm impressed!
Chicken breast is the meat that I always keep on hand and when I don't know what to make for dinner, I fall back on that. Alot of times, I simply thaw it in the microwave, sprinkle salt and pepper and poultry seasoning on it, fry it in oil or butter for a few minutes on each side, then we eat it with b-b-que sauce. We love it like that!
This is kinda off the chicken subject, but another thing that can be a big help (assuming you'd be interested in more ideas for meals) is those refrigerated popable cans of crescent rolls, French bread, etc. I use those so much to round out a meal!