This is terrific advice, enough so that I’m just pasting much of it below. I have my own slightly different take on it (in particular I think it’s more valuable to put effort into changing the world, in narrow, carefully selected, high-leverage ways), but Caplan’s is mostly pretty close. I don’t always manage to do it, but I’m a lot closer than I used to be.

1. Amicably divorce your society.  Don’t get angry at the strangers who surround you, just accept the fact that you’re not right for each other.

2. Stop paying attention to things that aggravate you unless (a) they concretely affect your life AND (b) you can realistically do something about them.  Start by ceasing to follow national and world news.

3. Pay less frequent attention to things that aggravate you even if they do concretely affect your life and you can realistically do something about them.  For example, if you check your email twenty times a day and find the experience frustrating, try cutting back to two or three times a day.  If you need to know about world politics, read history books, not newspaper articles.

5. Abandon your First World Problems mentality.  Consciously compare your income to Haitian poverty, your health status to Locked-In Syndrome, your sorrow to that of parent who has lost a child.  As Tsunami Bomb tells us, “Be grateful that you have a brain for thinking/
And legs to take you places.”  For guidance, repeatedly read Epicurus’ Letter to Menoeceus and Julian Simon’s Good Mood.

8. Find a career you really enjoy.  Ask yourself, “Will I take daily pride in this work?” and “Are the kind of people I want to befriend statistically over-represented in this line of work?”  If you have to signal for years to get this job, sigh, signal, and see Step 5.

10. Now that your own life is in order, you are emotionally ready to quixotically visit your ex-society.  Maybe you want to publicly argue for open borders, abolition of the minimum wage, or pacifism.  Go for it.  Bend over backwards to be friendly.  Take pride in your quixotic quest.  Then go home to your Beautiful Bubble and relax.

https://www.econlib.org/archives/2013/04/make_your_own_b.html