That oral fixation can be helped by using nicotine-free, tobacco-free fake dip. Day 773 for me and I still use some occasionally.
You stopped for a year-- that's commendable, but you are an addict and that's what addicts do. Hopefully now you realize what a patient foe the nic bitch is, and that you could use some help and accountability. That's why this site exists. The only thing you have to lose are your chains of nicotine-bondage.