Bad week.

So this week has been a bad week. My parents questioned me about my life several times so I questioned myself as well. My older brother started  ignoring me again. Our pet cat is extra needy lately. Dad's schedule changed...again. And to top it off I'm having a hard time sleeping and when I do sleep, I have terrible nightmares that wake me up in a panicky manner. Then, I wondered why I was even alive or if I'm even worth anything. I almost cut myself this week but I dropped the item I was going to cut myself with. Right now I'm just mentally, physically and emotionally exhausted. Not to mention that everything in life has gotten more stressful way more stressful. Am I even worth it? Can I even live?