Anyone have an overwhelming fear of dying?

I’ve never really feared death. I’ve been surrounded by it my whole life. I’ve lost both of my parents, some other family and some of my best friends. It got to a point where I became scarily desensitized to it. Since I lost my parents, my grandma has been my rock, but she died a week after my daughter was born and ever since having my kid I’ve become so fearful of dying. It becomes overwhelming sometimes and it hits me at random moments. I fear of one day not being able to watch my daughter grow up and being there for her the way my parents were never able to be there for me. I’m scared to leave her and my little sister alone because we are all we have now. My daughter’s father disappeared when I was 10w pregnant. It’s gotten to the point where I’m scared of doing anything. I keep thinking that one wrong move will take me away from them. I think my grandma’s passing really pushed it over the edge because even after everyone I’ve lost I at least still had her to guide me and teach me how to be a mom and now I have no one. I don’t know how to overcome it, but I don’t wanna live in this fear forever.