Wa `alaykum as-salamu wa rahmatullahi wa barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
It is permissible to eat from the food bought from income of selling cigarettes
Answering your question, Sheikh Kifah Mustapha, the Imam and Director of The Prayer Center of Orland Park and representative for Dar El Fatwa of Lebanon in the US states:
Yes, it is permissible to eat from the food bought from income of selling cigarettes. Selling cigarettes is makruh (disliked) to many scholars not haram.
I assume you are still young and dependent on your parents in your life. When you grow older and have your own income, make sure to bring income from matters not haram or makruh.
Allah Almighty knows best.