My dogs died

I dont know whats going on. I dont know if its OCD anymore. I know it was in the beginning. Ive been through a lot of trauma and had one little scary thought of killing my sister 4 months ago that has blossomed into this giant idea of me being a serial killer and wanting to hurt everyone (I never had any social issues growing up but I have had some trauma). Recently I’ve been having urges to just give in. And my mental images have been horrible and I can’t stop checking if I like them or not. I think I’ve convinced myself I have. This morning I woke up a shaking mess with an urge to unalive my family and when my mom left for work I was alone with my sister and couldnt stop vomiting uncontrollably. I dont know if i’m upset because I cant hurt anyone and I want to, or if I’m scared and just want my old life back. I was an avid horror and gore lover and now I’m convinced I want to do the things I’ve seen in the movies. Someone please help. I’m ready to check into the psych ward.

Im sorry I have to come on here and ask for advice once again, but as some people on here know I have been suffering with ocd since I was around the age of ten, which only got worse as my beautiful children came along. or nearly 60 years Ive had every type of ocd there is, they always come down to the same thing , not wanting to ever harm the people I love more than anything. I had got on top of this and was managing well, I know I would never harm anyone I love ever and would never ever want to, no more of the hypothetical scenarios for reassurance either , but its like every time I try to stop the mental compulsions intrusive thoughts come back after a few days, As I was in between going to sleep and was half awake the horrible words ' hope ***** dies I cannot even write the name down who it was about. I do not know where it came from but I am constantly getting upset about this as it was about someone I would give up my life for. I think you can probably guess what I mean without me having to say it. I do read a lot of posts and ocd podcasts and once read someones story wher they used to wish bad things and I have never been able to stop worrying in case something like that happened to me . Could this be what it was that has caused it ? I think Ive also still held onto something from when I was a child when I used to worry that thinking something too much could make it happen,, Please, please give me some addvice and thank you,,, sorry for the long post.

About 2 months ago, I sliced my arm so deep in an attempt to make this all go away.. as there was blood spurting like everywhere my life flashed before my eyes and I could hear my parents laughing in the room beside me. I started screaming for help as my eyes flooded with tears. How could their little girl do that to herself?? I was able to get to the ER and have my arm stitched up.. making my attempt a fail. But I’m so scared. I don’t want to do something like that again. I’ve never seen my parents cry except for then. The fear in their eyes haunts me up to this day. But that’s the only thing that relieves my pain. Can someone help or relate to this ???