Tooth crown??!

Tooth crown??

I have been told i need a tooth crown.cap for one of my top teeth. I have had one doen before at the other top side, and always the injection is very painful at the top ones!! and when i came back to have the temp crown removed it really hurt when he snapped it off or something! will it happen again or was it his mistake?? because he said sorry. is there anything to make the injection less painful,the other time it made my eyes water. damn im really nervous.

2 months ago
I had the injection the first visit when he filed the tooth to very small or whatever. the second visit i didnt have an injection but it hurt badly when he took the temp one off.

crowns are pointless as they come out