You might try Bach "Rescue Remedy". It's been around for 30+ years and people love it. It is made from flower essences.
Worked for me.
There is no way with what is going on in your life not to feel great stress, as you are in very stressful cirucumstances.
But if vaping is making you feel sick, I would find some other harm reduction method, maybe snus or something.
Best wishes to you and your family.
