Damn I've had so many different obsessions. It all started with religion. "How do I choose the right religion?" "How do I know if there's a god?" "How do I know there's a meaning to life?" "How aren't other people occupied with these questions?" I had (and sometimes still do) tons of intrusive thoughts about meaninglessness of life. And tried my best to solve all these uncertainties. "Do I really believe nothing matters?! Am I becoming a nihilist?! Am I losing my orldview and my Self? What if I started to fear my own existence?". I bought every spiritual book I could find. Looked into every religion or philosophy trying to find some peace. They all seemed to give some comfort but only for a short time. I tried to meditate, do some yoga, talk to priests, my friends... When I ran across Mark Freeman's ocd youtube channel I finally realized this wasn't just some normal philosophical answer seeking. This was ocd running wild. Deep down inside I knew all these questions were just a way for me to make myself scared. Aka bullshit.
Since then I've had so many different themes. Nowadays I know that if my mind comes up with aa question like this and it grabs all my attention and makes me feel like I can't go on living normally until I've found the answer, it's just ocd playing it's games. I know I shouldn't even try to look for an answer since it's a compulsion. Compulsions keep ocd going.
I've seen many people on this forum wrestling with solipsism. Their struggle is real even though they know their obsessions are all bs. I ran across this website that talks about existential ocd. I hope it can help you realoze that what you are going through is just ocd. And with ocd you know how to get over it: cut out the compulsions, expose yourself to the uncertainty ithout trying to solve it and meanwhile live your life normally every single day. Go out with your friends, spend time with your family, go to work or school, have some hobbies, paint, write, cook... all the good stuff! Don't let ocd change your behavior!
https://www.intrusivethoughts.org/oc...xistential-ocd