As reasonable as it sounds that 5 is better than 10 is better than 20 - Smoking is not like that!
The only way to quit is 100%!
You can't smoke just on weekends or after 5 pm or every other day or only so many a day or any other plan you dream up to have your cake and eat it too!
The only way to have your cake is to quit!
Yes, at first you might miss smoking! But you'll soon realize that you have given up absolutely nothing of importance! The real treasure isn't your Addiction - it's your FREEDOM!