How can I cope with my obsession over death and the afterlife uncertainty?

Really struggling with the idea of death, scares the shit out of me. My OCD has really clung to this and all I can think about is my Loved ones are going to die one day and so am I. I’m flooded with so many emotions ranging from fear to guilt. It’s gotten to the point where the thought of death is always in the back of my mind 24/7. I’ve been having nightmares about it now and will wake up in a full blown panic. Anyone deal with something like this? And any tips to move past this?

Does anyone else think about life so deeply all the time, i have always been a deep thinker since i was young and ive had ocd my whole life so that has made me think 10x deeper. I always think and worry how we are all here and nobody knows why and the fact that we all die also terrifies me and we dont know what happens after we do die. Im terrified of the people i love dying . but i also have suicide ocd, i dont want to hurt myself ever but i worry that if i become so depressed that i will or something like that and that turned into an ocd for me, i really dont want to ever hurt myself but feeling depressed scares me. For years now it has been an ocd thing for me about the people i love dying and i have to do mental complusions every single day , although it comes in phases where its worse than others. It has gotten worse because my dad just turned 50 and i turn 19 in 6 days, life is changing and everyone is getting older and its been making me depressed and anxious and theres nothing i can do about it because it is life. I just want to know if other people feel the same also. Its christmas eve and im just depressed and i dont know why.

For the past week-ish I have been having a really scary existential crisis that feels like it is stemming from ocd. It started with me being freaking out that i’m going to die one day, then it merge into me being freaked out about what was going to happen after I die (mostly the thought of nothingness). I found some very brief relief in some spiritual beliefs and watching psychic medium readings but then I started think about even bigger and harder to answer questions such as, “if there is a God, who created God?”, “Is the afterlife scary?”, “Could the afterlife end one day?” “What is the point of anything at all?”, “Will the sun exploding destroy whatever afterlife exist?” Really ridiculous questions. I truly believe that there is something after death and something that exists as a life force science cannot explain, but the fact that my mind can’t comprehend or figure it out is really really scary. I feel as if I am going crazy. I have been thinking about nothing but the universe and the meaning behind it all and where it all came from. I can’t enjoy anything anymore. I just want to lay in bed all day and even that is hard. I have been non-stop watching videos about people’s beliefs about this topic trying desperately to find some sort of answer and I am starting to think that may be a compulsion. I am trying my best to remind myself that I when I die I will have all the answers to these questions and I don’t need to worry about this right now because it truly doesn’t affect anything or change anything in my life but it is really hard. I feel as if I have “uncovered” something and my life will never return to normal again. I am terrified that I am going to go crazy or start having hallucinations and that I’ve ruined my life by researching into something so complex and not understandable at all. Any kind of suggestions or anything would be helpful, I hate dealing with this and feeling so crazy and hopeless.