Does anyone else worry that they’re shaving years off of their life because of all the stress and anxiety

I started dealing with OCD when I became fixated on health issues, particularly the fear of contracting a life-threatening disease. If I experienced any kind of medical symptom, no matter how small, that even remotely hinted at something potentially fatal, it would drive me crazy, and I couldn’t stop obsessing over it. Then one day, I started having intrusive thoughts about accidentally hitting someone with my car, and I would end up driving in circles to check if I had. Eventually, I found myself overwhelmed by a flood of new obsessive thoughts and compulsions. One day, while I was at the park, a squirrel came near me, and for some reason, I felt like it attacked me. I Googled it and learned that squirrels could carry rabies, which spiraled me into a deep fear of rabies. I became consumed with the thought I received a bite from a squirrel, raccoon, or bat any time I’m in areas that trigger me. It started off only being inside then transferred to even being in my own home. This made me obsess over every physical sensation in my body, compulsively checking to make sure nothing was wrong. One compulsion that I hated the most would to be putting rubbing alcohol on me to make sure that I had no open wounds. Every day feels like I’m walking around in a fog of anxiety, constantly worrying that I won’t even make it to old age. Sometimes, it gets so overwhelming that I just want it all to end. It stresses me so bad at times to where my brain feels like I’ve been studying all day.

So at one point I was glad I was having anxiety/stress about these thoughts but now I feel like something has changed is it normal to not want anxiety and stress even tho it helps me realize these thoughts are not mine. Like the anxiety and stress is doing me no good and it's really messing me up. Is it normal to not want stress and anxiety after awhile or is something wrong with me

Of course we can’t stop the inevitable but with my ocd it’s all I can think about. I’m afraid I’ll be alone for ever and I’ll fear forever. Fear does not stop death it stops life. But how do I stop fear??? I can’t think of anything scarier than the fact that our conscious will vanish for eternity. I am only 20 years old but I mean the last 5 years flew by like nothing.