Is lack of sleep the reason I can't concentrate or focus?!

Is lack of sleep the reason I can't concentrate or focus?

I am 14 years old and I'm getting very scared of what is happening to me. I haven't been getting alot of sleep lately and I can't focus and concentrate 24/7 on what's going on daily. I have been having problems with my family and I finally settled in with my grandma who helped me out. What's going on here I can't focus anymore on mostly anything what is going on????????

Stress is causing your lack of sleep, and yes all the symptoms you describe are from lack of sleep. Are you less stressed now?? If you are you sleeping patterns should get better.