Congratulations to you and your fiancée!
You will get a lot of kidding and all kinds of advice. After being married to the same woman for more than 35 years here is my take:
Respect one another, including opinions. I never understood why someone would marry a person they thought was dumb. Actually I do, but this thread is about marriage not sex, he he he.
The more you put into a marriage the more you get out of it. This means doing things for your wife, not just material things, though that does not hurt if it is in addition to emotional input.
Compatible education, religious, financial and political views/backgrounds are not required, but life is easier if they are. The same goes for your families.
Remember you are going into a partnership with your wife. She will be the mother of your children, the holder of your credit cards and drive your car. Will she take care of you if sick or injured?
On the cigar issue, would you stay with here if she decided she could not live with your cigars? Rick’s advice was very good on that point.
Finally, if you want an excellent marriage test, take her camping for about three days in a dry camp. This eliminates “dating face/behavior” and allows both of you to see each other clearly.