Hi, My Dad Passed Away In 2012 With Colon Cancer

Hi, my dad passed away in 2012 with colon cancer he was 79 yrs old. I'm 47 had a colonoscopy 4 or 5 years ago, they found 3 polops removed them they were negative. I'm petrafied of looking at my stool, afraid I might see blood. Im also scared to get another colonoscopy bcuz im afraid they wii say I have cancer. I'm female, don't eat red meat very often if so it's venison. I'm active, 5'4 125 pds. I drink 1 to 2 glasses of wine with my meals not all the time. I don't smoke. How can I get over being afraid of the unknown b4 it kills me?