Fixing cavities

Ok so I want to go see a dentist to get my cavities out and filled in... But im afraid of dentist because I dont want to feel the drill in my mouth because some of my cavities are really sensitive... My mom said they could put me to sleep but I dont want to have to get an intervenus. Can they just give me a shot?

They always give you a shot to numb it why dont you just ask for laughing gas??? haha

they will numb your mouth so you don't have to worry.

if you get laughing gas, you'll just get really stupid and you won't care what the hell they do to you. (you won't be able to feel it, either.)