The guy who taught me how to eat sushi a couple months ago explained that I should get a slice of ginger before trying a different kind of sushi in order to "reset my taste buds" (probably broscience) and feel the taste anew (it works). That's also the exact problem that programmers face when trying to design user interfaces: after looking at the thing for a long time, they grow blind to its shortcomings. A visual reset would come in handy. I imagine that resets could help in other areas too. Does anything like that exist? Cogsci majors, help!
This might sound obvious, but:
Spending time frequently with different groups of friends with different value systems, each of which (you believe) has an accurate map of different parts of the world.
My experience:
My rationalist friends help me inject more empiricism/anti-happy-death-spiral memes into my church experience; my church friends help me keep other memes like "non-smart people are still worthwhile," "actions perceived as demonstrating character and virtue aren't all just signalling," and of course the "no sex, no drugs" purity meme.
I am in favor of all of the preceding memes but tend to forget each of them over time if I spend too long in a community that doesn't observe them.
I grew up a very religious child, and I kept the no-sex meme long after I stopped being religious. Can you explain why you value no-sex purity?