I don't think your lips will heal just because your getting out of the house. I do think stress could have a small part in this, but it's less stressful to stay in the house, than go out and have everyone staring at you. But I don't think a lot. Of the stuff you mentioned will really make that much of a difference, let alone be absolutely nessecary like you claim.
And i don't know how your so sure about how this method works or doesn't work, especially since your not doing it.