I dont know what to do !!

Im not sure how to go about this situation but I am trying to conceive and in order for this to be successful I have to change my diet,exercise , and just do certain things different. Well my partner smokes and I asked her that if she wanted to have another baby and she said yes . Well ealier this year i told her around October I want to try and conceive so can you start on the process to stop smoking (shes been wanting to quit for years) and she said she would we even invested in a vape to help. Well we are now in October and she is still smoking and I still have to sit here and smell cigarettes here and there which i cant stand . What should I do ? Am I being selfish ? Im ready to give up on this. I feel like if she wanted it as bad as I do she would stop,or maybe what I want does not matter.