First make sure you do all your cooking inside and when you do all windows and doors need to be closed. That should stop much of the smell. Do your cooking late at night if there is no light on the streets. In the day air out the house,it should not be that bad by then. Spices are hard to mask and if you try with burning paper or leafs they will see the fire or smell something and come just to see if there is food since they will be hungry. Hunger will make people do anything for food.
Make sure your windows and doors are sealed so the smell doesn’t go outside.
That is good that you have wallpaper, dark cartons is very good and the tape too.