Since my mom had colorectal cancer at 45 I was expected to start colonoscopy at 35 and then every 5 yrs

I did the first only so far and no polips.

There's nothing to be scared. It takes less than an hour and is painless. The worst part is the prep you do at home a day before. It's very powerful stuff. You'll be shitting clear water by the time they do the exam.