Is this normal eyesight?

i have really bad eyesight since I was like 10 and I'm 14 now. my eyes are like so bad, when I don't have my glasses on, I can't see Anyones face no matter how close or far they are. I can't see books and stuff. I have to wear my glasses the whole time. I have contacts but since this year, in my right eye, the contacts were irratating it, cause a black dot in my eye, causing my eye to be red, like bloodshot. so I don't wear contacts anymore but I really want to... any suggestions? how can I make my eyesight better? (btw I'm allergic to carrots)