Yup, there have been a number of times I've thought, dang, open pack, flick lighter, POOF. However, I have been able to resist the temptation. I have plenty of gear, I'm capable of rebuilding coils and making my own juice. As mentioned above, (I think by roxy) I don't have to fiddle all the time. I usually have at least a couple of tanks at the ready and somewhere there's a mod with a good charge on it.
I lost my uncle to lung cancer about 15 months ago. For years before, I kept saying "I need to quit", but my head wasn't in it. It still took another six months after his passing for me to FINALLY put down the smokes.
Sending you and your friend many prayers....
Sorry to hear about your uncle. Glad you have hung in there, he's a great motivator.