Please don't put yourself down. You're far from stupid - I (maybe mistakenly) assume you've either given up smoking or in the process of giving up,so far from stupid.
Hi as others have said on here you should not put yourself down we all have to start somewhere you will get there in the end you have just got to keep trying till you get it right you will in the end just remember practice makes perfect and we have all been there at some point or other ..........