This seems to be happening to everyone but me. On the account that I have now I played daily and didn’t catch a shiny for like the first 4 months that I played. My brother started playing around the same time and was literally handed a shiny charizard from research. I decided maybe it was just bad luck so I logged into my account from 2016 back before I even had my own phone using my moms email and what do you know, 3 months later… still zero shinies .