I need detailing help!!!

uhhh I drive a 2001 Lexus IS300. Used to have GM’s but never changed my name on here. And these spots weren’t there a week ago when I washed my car and I can remove them with my finger nail but since theres about 30,000 little spots that would take quite some time to remove with my finger. I don’t think wetsanding is the answer but I appreciate the feedback.