Errm..ok so what is my problem? if i have one or is this normal?

alright so im quiet. and i guess u can say i get type nervouse, im 14 and if i feel people are staring at me i tend to turn red on mi cheeks and sometimes sweat, then my eyes water. :/ so i cant have ppl staring at me or feel like they are, im quiet at home im loud and all but as soon as im in school im quiet, somehow it seems as if i have forgotten the english language, when i speak it well at home, i also stutter at school. my eating habits are alright, my mom says i eat too much, im normal size not too skinny or fat. 5'2 yesh ill admit ihave low self esteem. my sleeping patterns arent the best, i tend to sleep too much like 9 hrs and still tired, sometimes sleep a little less then 7 and still tired but i guess its normal, there was a time when i was depressed ad felt alone, so i was stupid and cut, but i stopped so no worries, i have friends and all but yet i feel somethings missing, i wasnt like this before and now as soon as i hit teenage years everything just went wrong, i heard about shyness phobia and all these mental illneses, but im unsure, and dnt want to discuss it w. mi parents, their strict and im sure theyll get mad if i tell them this. esp. the cutting part :[ thnx for reading this all, ur awsome if u do :]