Please Help

Tu

I'm so afraid of growing old and seeing the death of my family and friends. I don't want to live in fear of it anymore, but if feels like when night comes around I can't stop thinking about it and it hurts so much. It hurts me a lot, yet I can't stop thinking about it, but it's everywhere. I have older parents and I've nearly lost my mom twice,, I'm just so scared of being alone. I want to believe in the afterlife, but it's just so hard to. I look up stories and ask my mom about it, but I just can't believe it. I don't want to be alone and I don't want to fear it anymore. How do I stop thinking this way? How do you even manage without your loved ones?