I'm hypersensitive/never satisfied?

i'm 17 f and I feel as though i struggle with hypersensitivity and it really interferes with my life. i freak out about the smallest issues and overanalyze EVERYTHING. for example i just got a new laptop for college and i've found so many things i already dislike about it and can't deal with and i'm ready to return it, but others just find me to be crazy (you're probably thinking the same thing as well). I just pick up on little details that annoy me so much to the point where i want to scream. i also have an extreme fear of spiders that interferes with my life a lot, i'm always on the lookout to make sure there's none near me. also with my family we fight a lot and i'm always putting up a defensive wall at home and i'm wondering if this has to do with any of the hypersensitivity... i have a strong relationship with my mom but whenever she does the smallest things it annoys me and i take out all my anger on her... and with my dad, whenever i'm friendly to him he treats me like i'm 4 years old so i just try to push him out of my life even though i want him in it (and i've talked to him about this before but he won't change). I just feel so lost and confused and wondering if you have any advice for me/if anyone is familiar with a situation like mine.. .thanks