Has anyone had an Endoscopy through Galen or other areas?

I'm scared out of my mind to go under with propofol. They said it's not exactly like anaesthesia since I will be concious but won't remember anything?? I'm getting an endoscopy thanks to GERD and general acid reflux. I have been put to sleep once a long time ago, but I'm so worried about not waking up this time lmao. I know it sounds silly, but I'm wondering if anyone could share their experience to help me feel better.

I'm 31, 10lbs overweight, active (jog 3x a week, light weight lifting 4x a week). Super clean diet during the day, then I go crazy on sweets during the night which prob puts me at a 1k calorie surplus and explains why I'm overweight lmao. I'm getting better tho!