I'm sorry to hear that you're facing same issues. Check out this video : ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-t8uprNFN0u4.html. I've shared some common fixes in there that should hopefully solve your problem.
Sorry to Know that bro,You can watch this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-t8uprNFN0u4.html where i have share some common fixes if none of this method work for you then report the problem to valorant support center.