Right, you know you can take paracetamol every 4 hours, so 2 hours after that take nurofen. That way you have a constant flow of painkillers in you. Not ideal long term, but will help you get thru this. Try clove oil. Put a little on a cotton bud and put it on the tooth. If you feel you need.
The smoke was normal, ok. What happens is we put a soft plastic material called gutta perca in the root canals when we remove the nerve, as we can't leave it empty. The easiest way to smooth it & remove the excess is to use a hot instrument to melt it off.
Once you have had sedation you should have a responcible adult with you for the rest of the day. The back thing i think is to stop your tounge blocking your airway. I have never given this advise, ans if you think about it, whe you are in recovery you are on your back. But anyway, that would only be (I would think) for that day
You will not have blood pouring out. There will be blood, and it will look like alot, but iy mixes with saliva which gives it extra volume. If you bleed you can roll up a hankie & bite down on it. Pressure will stop the flow. But if it's straight forward, bleeding shouldn't be a problem.
If you are sedated & properly numb, then you shouldn't feel anything. If you do the dentist should top up the local. If you are numb, then you should only feel the sensation of something being done, which hopefully if you sre sedated wouldn't bother you!
fear of the dentist is common. Most of the patients I saw who were nervous firefighters, policemen etc. And a dentist I used to work with was petrified of seeing a dentist! I had a patient who was terrified of injections and insisted we pull a tooth without it! We did, wasn't nice tho! It isn't only you. It's hard, I know but explain to the dentist how you feel, even if you have to do it at every visit, they are human and do forget (although that's no excuse, all patients should be treated at potentially nervous, and a note should be put on your records)
If you always have pain present, then (obvious I know) it wil only get worse. The fact that the paracetamol is helping mean there is hope. Maybe all you will need is a filling, which will be alot easier.
Keep it as clean as possible & let me know if you need anymore help.