Ozone worked the best for me as well. That combined with hot bath for humans, clothes dryer on high heat for those things that could not be ozoned and rubbing alcohol on some other items that were not ozoned (e.g. laptop).
The trick with ozone is to get high enough concentration to go through everything. I would recommend to pull your clothes out from shelves and spread loosly on bed, floor. Also make sure you air out the place for hours before occupying back. It's a lot of work, but the only thing that really made a difference and returned sanity. My ozone generator came from OdorFree and I like it that the plates are removable for easy cleaning. Not associated with the company whatsoever. Good luck.