should i be afraid of my upcoming dental visit?

I apologize that this is going to be a bit long in advance. so long story short(er). I have always brushed my teeth twice a day and flossed, but yet I would get cavities over and over again. I was adopted and recently found out genetically we have "soft enamel" from my birth father. So I went in to the dentist where they discovered 11 cavities that needed to be filled. everything went ok with the first 7, but then when they got to the incisors, i felt the drill a tiny bit and before i could stop her from going further, she hit a nerve with the drill going which was one of the most ungodly feelings I have ever had. we kept going on to the next tooth, and it happened again. finally i told her I couldnt take it anymore today, left, and I just couldnt bring myself to go back. i would get in the car, and then turn right back around. frustrated that I just couldnt do it. as time went on a large filling came out (on top of the other cavities that havent been addressed) I went in and let him do a filling, but I was (even with nitrous) gripping the chair, sweat pouring down my face,while they were trying to work. and they even said they didnt know if they were going to be able to work on me. so fast forwarding a year i can see that one tooth looks like its gonna need a root canal. there are 8 new cavities that have formed. 2 in the back, the hole is black, and the other molar is coated in a like a yellow/orange film that wont come off. surprisingly little to no sensitivity. all of my teeth have a white coating thats hard near the gumline. and a lot of my teeth are very yellow. yes I realize this is my fault for not being able to get a hold of my fear, but there werent any sedation dentists .my insurance took until now. I called today made an appt and I am going in 2/11. they said they do sedation to where your really not awake and i would need someone to drive me home. but they do everything in one shot. which brought tears to my eyes that is exactlywhat i was looking for. to just put me out and get everything done. But I mean i can look at my teeth and cant see one that doesnt have problems. im so worried theyre going to tell me I have to get a bridge, a partial, etc? what do you guys think. please dont be rude in the answers this is a very sensitive issue for me, and i am being proactive about getting it taken care of while owning up to my mistake
--------------------
I cant tell you what they are going to say but i can tell you im petrified of the dentists too. I have always had good teeth but problems started about 3 years ago and now 3 of my teeth have fallen out and the roots have been left in but im too scared to go and get it sorted. when ever i go i sit there crying so please dont think yor the only one because i am too i think its just that we have to face our fears and go and get it sorted as you will feel so much better after wards xxxxx Hope your ok xxx
Source