Help I need to get a colonoscopy but I'm deathly afraid of hospitals so can someone calm me down and show me it's not that bad..?

I have a massive fear of hospitals. I have general anxiety, germaphobia, needles make me pass out and I'm very sensitive to other people's pain so I think you can understand why hospital visits are an absolute nightmare for me.

My symptoms got a lot worse last month so I had to go back to my GP who then sent me to a new GI who called me childish for having a fear of hospitals and pushed me to plan multiple appointments within 2 weeks from the call which sent me into a panic attack which only made me more anxious yay nice🫠

I was sent to another GI who is specialized in people with fears and medical ptsd so she's a lot more chill with me luckily. My colonoscopy is currently two weeks away so I'm in the process of mentally preparing myself but looking into it is only scaring me more. I also really don't like the thought of having to take laxatives beforehand while I already have diarrhea all the time- If you've had a colonoscopy with IBSD can you please tell me what to expect..? I know the procedure, but it's hard to find people's experiences with it...

Edit: Everyone thank you so much for your comments it's actually helping me so much with the anxiety, I love how supportive this community is🫶🏻