no drug will ever make you truly happy, they can only make you feel better for a while. do it if it's what you feel you need right now. but remember it's something that you will NOT let get out of hand. YOU are in control of your life, and if you want a cigarette, then have one, but remeber that you are the one in charge. we are humans, life consists of all these little **** ups that happen but we learn from them and we grow and over the years we realise more and more.. that our minds are the single most useful tools we have for dealing with things.
let yourself experience this, but in time promise to yourself you will find a better and healthier way of coping, it is possible.