I guess i need to move on?

So i usually feel okay with myself but lately i found myself stressed and worried because of my last year in school and my exams. I used to eat normally or maybe a bit less but kind of okay. Now i started to eat a little more and i am already affraid that this will affect my appearance. I have asked my mother if she see any change, although she said no, i am still worried. And as i looked into the mirror i felt really ba

d, and lack of self esteem. I know this feeling will go away but it is really shitty right now... Also i feel kind of guilty cause i know there is not big problem with me although now i feel like, and i think i am maybe overreacting this.