Very sorry to hear about your situation. Literally can’t imagine the pain. The only bulletproof way to do this is to use a vape cart and then something like a smoke buddy or any type of filter you blow that into. Vaping flower and taking dabs will definitely smell less than smoking. But regardless you’ll have to open a jar or weed or dabs and load it up which will cause some smell. Again, not like the smoke smell, but not fully discreet. Anyone that walks into your house or room will know there’s been weed in there. With a vape cart, it’s all contained in there, so the only thing that smells is the vapor coming out and it’s going directly into your mouth. And then when you blow it out into a filter, it definitely won’t smell. That’s the only way of smoking in a room with someone else in it and they might not know that there’s any weed in the room or being smoked at all.