Hi, Im 13. I Have Become More And More Tired

hi, im 13. i have become more and more tired these past weeks, my hands seem paler, sometimes purple, and shaky. my skin is quite sensitive to cold, but they never reacted like this before, especially since i never go outside in the winter. i always eat my dinner and supper though my breakfasts are always small like just a toast because im never hungry in the morning. I try to sleep very early adn get minimum 9 hours of sleep per night, but Im still tired. can you help me?