Plus, there's a hack: changing your geographic frame of reference really helps. If you can afford it and are not too attached to where you're living -- and especially if you kind of hate where you're living -- just pick up and move. Ideally to a different climate, perhaps with a different accent or a different language altogether.
At least for a while -- 6 months to a year.
You see your brain is hardwired to 'index' new memories based on sensory cues -- light, colors, smells, sounds... and especially new faces. When these stimuli change, and especially when they all change at once -- it's like our brain opens up a whole new space to operate, and to start organizing all of these new memories and experiences in.
Like turning the page and starting a whole new chapter, as it were.