Double calender posts in my google calender

[CGilligan]

I just got the galaxy 8 plus amd I dislike the way I can't color coordinate the appointment (at least I don't think I can. ) So I went back to my google calender and all the calendars appointments from the stock calender is showing . I went in the google calender and disabled that connection. They are still duplicating.
Thanks for the help this is my 1st time ever postong or using forum.