I would say only arahants are completely "happy" in that they have no more work to do.
But semantics aside, on a conventional level I am happy in this regard. Why? I am happy because I'm not using destructive intoxicants. I've tamed my mind to this extent. I'm happy because I'm fulfilling the fifth precept and the fourth factor of stream-entry, below. My virtue is pure in this regard. It makes me happy to think about it.
He is endowed with virtues that are appealing to the noble ones: untorn, unbroken, unspotted, unsplattered, liberating, praised by the wise, untarnished, leading to concentration.
Are you saying you've only gone a few minutes without snuff in the past 14 days? I'll ask again, and please answer this question directly so I can get a clearer picture of what's going on: what is the longest time you've gone without snuff (excluding sleeping) since you started using it two years ago?
When this is, that is.
From the arising of this comes the arising of that.
When this isn't, that isn't.
From the cessation of this comes the cessation of that.-SN 12.61Ex nihilo nihil fit.