I feel so pointless

Hello, I am a young girl struggling with OCD, specifically existential related OCD. I feel constantly like my life is pointless, like my goals aren’t significant, because, I’m just going to be forgotten and die. What is the point? I don’t want to get old and not be able to do what I love. Sometimes I wonder if not existing would be easier, but I don’t want to die yet. It’s really confusing, and I’d love some tips I could get for motivation. I really want to be spiritual, but I struggle in believing in stuff so…?

Really bad theme right now is death, I keep thinking about how one day or at any moment my heart will stop my brain will stop & my memories & everything I know will all fade away. It is giving me so much anxiety I’m only 18, but I realize it all happens to us it is bound, we are born to die. I know it’s a silly thing to be scared because it’s not helping the quality of my life worrying about it and even when I do die, I won’t care , if you don’t have a working brain then how can you care 🤷‍♀️. It is tainting my everyday life currently & honestly making me terribly depressed & it is giving me derealization & making me feel nihilistic, I’ll remind myself it’s okay but then with my ocd i don’t stop thinking and thinking about it and it’s seriously so hard to stay present in the moment because this thought just feels like I can’t scrub it away it’s miserable I struggle with religion, but I do pray to anything that’s out there possibly listening, because it is comforting, it just feels like this whole experience Is pointless & I am afraid of the unknown and what is to possibly happen but I’m subjected to it anyways so why should it matter

Today my mom broke down crying because of how much stress she feels having to take care of me, she said I can’t do anything in terms of being able to take care of myself and she’s right I can’t, she breaks down constantly because of me, I don’t know what to do, it’s been like this for years, part of me feels like the only way to save her is to kill myself, I don’t want to die, but it feels like the only way to set her free, I don’t think anyone but her would miss me anyways, I feel utterly hopeless. I’m not going to do anything to myself the voices are just SCREAMING that I need to. I can’t work, I can’t go to school, I’m trying desperately to get therapy, I don’t know what else to do, I wish I was a child again and I felt like I had a chance to be okay. I love my mom so much and she loves me and I’m killing her, I’m actually killing her, with how fuckinh worthless and pathetic I am, it’s too much, I miss being a kid.