I can't say I've even used the happy place method before, I've always had other approaches. Not sure how suitable they are, though, because it's been more of a method of just picking myself up and getting through it. The "this too shall pass" or "others have gotten through worse" approach. No happy places there. There is also the "compartmentalise and tune out" method. Maybe I should try and find more happy places and memories.
Happy places are one of the more positive techniques. I like this take on them because it is not avoiding interactions and just tuning out. You can add creative visualisation to them too but that's for a later post.
Everyone has a happy memory or two and the happy place technique also helps one to remember that the past wasn't all bad. I know there are exceptions to this but those are folks who need far more professional counselling than I know about.