@imafraid I'm so sorry you're feeling scared and I feel exactly the same way as you can see from my threads.
Some things that I cling onto that give me some hope when all seems lost which I thought I'd share, I hope it works for you
1) I'm not alone in the room. I'm with a dentist and an assistant. If they hurt me even for 2 seconds they WILL show concern for me. They will stop. They are trying to make it as easy as possible. Being alone with my thoughts is the worst part
2) you can, if you can afford to, make the experience less stressful. Things like nitrous are shown to leesen stress and discomfort
3) confide in people you absolutely trust. Not ones who just say "ohhhh you'll be fiiiiiine or it's not soooo baaaaaad" because they can't be bothered. Talk to people you can really confide in who knows how to make you feel more positive
I feel like once I'm in the dentist at least the waiting is over. At least we can "get it done". The waiting, the anticipation is the killer. It isnt as bad as I build it up in my head. But it's still a highly unpleasant and very stressful 30 mins, hour or so.
You CAN do it. I know you can. I wish I could wave a magic wand and make everything lovely for you. But you CAN do it. You'll most definitely appreciate the effect of the work when done.
Please let me know how it goes I'm rooting for you. I'm just the same as you in feelings and I'm desperate for you to succeed x