how should i tell my dad that i think i need help? do i even need help at all? here's what i've felt like for a while:

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okay, so i've been feeling really... weird lately, i guess. i feel like i want to cry and scream and rip my hair out, but i can't actually cry. depression runs in my family, so it wouldn't be completely unheard of if i had it. i feel like i don't really deserve anything and that everyone hates me. i have a terrible temper (thanks to my dad) and i get really aggravated for no apparent reason. anyways, all advice is appreciated. thanks.