Hi Andrina!
I am glad you are asking about this, as I think you will find most people have an okay experience with colonoscopies.
I have had a few. All went well. It was "easy." The prep was the worst part. My husband has them fairly frequently, as he has lost family members to colon cancer. I have been invited to watch a few of his colonoscopies. Reasonably interesting to watch!
I cannot stay awake to watch mine, but my mother watches her own colonoscopy (on the screen) every time. Don't know how she does that, but she does. Lol!
I hope you are more relaxed about this.
I hope all goes well for you on Friday and hope your colonoscopy is helpful to you!
Take care!
With Gratitude,
~Hopeful Heart~