How Do I lose weight and quit smoking with bipolar?

Well im a 21 yr old female and I have bipolar disorder and I would love to quit smoking and lose weight and hope to keep it off but im just afraid that I will do all that and lose my mind in the process so im just looking for easy ways or some suggestions??? Im a bit afraid of going crazy
im a little afraid to take any meds…. I have been on too many things already

Quit smoking?

Ok here is the skivy. I smoked from about 17-20 not all the time but i would have maybe 2 a day, so i guess you can say i was a casual smoker. Well then when i met my x-husband he made me quite, so i did cold turkey. No pills, gum nothing. Then about a year ago i started back up around the time i was going threw my divorce. So now i’m 26 and its been about a year since i started again. Again i’m still a casual smoker, but i prob. go threw about 10 of them when i’m out drinking. Not smoking during the day or when i’m sitting at home is not an issue, thou when i do have a stressful day i’ll light one up, but its just this bad habit when i’m out having a few that i want to stop all together! I know some of you may say stop drinking, but its not like i go out every night, its just maybe one day a week, and then maybe once on the weekend. So i’m wondering if anyone has any ideas as to what i can do with out taken over the counter meds or contacing my doc to quite! Thanks