toothfairy -- I'm sorry, I'm afraid I assumed you had switched to vaping! (Ignore my comment about smokeless tobacco for the moment -- it's really intended for those who find vaping isn't enough for their mood/mental state, which is a small minority.)
If you are considering going back to smoking, I urge you to give e-cigarettes a try. The nicotine and the act of "smoking" will help you a lot in improving mood and avoiding weight gain.
(At least, I know there was
no way I could give up cigarettes for long without this alternative!)
I really suggest you read The Wonderful World of Vaping[/URL], and read up as much as you can stand.

Many people on the New Members Forum have asked similar questions and gotten good answers -- without knowing your particular needs it's hard to say which kit to start with.
Of course, if you have questions of your own, feel free to ask them -- this is a really helpful community. There's a learning curve with e-cigs that we all went through, but I think you'll find it's a really satisfying way to go.