Welcome @JoanD Congratulations on 1 week smoke free. The first week is the toughest so big congrats on that. Also, congratulations on getting engaged. That is awesome.
For what its worth, I smoked for 20 years, initially just socially and then it became a habit and addiction so I know how you feel. What worked for me was accountability (joining a support group of fellow quitters, like here, and sharing your experiences and reaching out for help as needed) as well as learning more about nicotine addiction (lots of this info can be found in our site's quite smoking discussions section) This really helps.
You are doing a great thing in quitting smoking. There is a lot of support and knowledge you can gain here. Welcome aboard.