I had to have all except 3 teeth out last year and due to dental phobia was offered IV sedation. My dentist was very good and understanding from the start (I hadn't been to a dentist for about 15 years due to the intense fear), and the sedationist very reassuring as well. I had a job getting up the stairs to the surgery room, my legs were so weak with fear. It was a long surgery - booked as 2 hours of sedation though in actual fact was about 1.5 hours. I drifted in and out, was aware of some of what was going on and do remember parts of it, particularly as the sedation began to wear off towards the end of the process, but certainly could not have gone through it without being sedated.
Wishing you all the best with it, there's so many of us with you, you're not alone, even if we can't physically be there.
Have a nice treat planned for yourself for a couple of days later, when you are feeling better, and focus on something positive while the sedation takes effect.