Tired of life

I’m so stressed out I didn’t get accepted into the university I wanted I work extra hard in school I’m starting to think what’s the point of trying. My mom really isn’t making it better I just started my job a month ago she basically took half of my check and wants me to buy a car on my own she won’t even take me to get my license I only work weekends we argue constantly anything I say or do is a problem I’m having health problems I’m just so tired of dealing with this. my dad is forced to care about me I’ve been sick for 4 weeks and he just came to check on me Thursday not a call or text before that he’s been forced to care about me for years.I just so irritable all the time nobody understands me. This is why I isolate myself and rather be alone I’ve been like this for a while now it’s getting worse idk if I’m depressed or what but I just wanna run away and be alone