personally i can’t do this because i will focus too much on the good things that cause a dopamine rush and then overlook the bad  when i broke up with my now ex i had to train myself to stop looking at pictures of us when i felt down to stop thinking about the memories when i went places where we had experiences before etc   it made me realize that for that dopamine i couldn’t think about myself experiences and places without him being the center of it   so now when i do experience what you’re speaking of i reach out for new affirmation instead of clinging to the old ones it helps me stay level headed while still maintaining my sense of self