well if only thinking about yourself yet different from selfish technically all of your problems would be gone accompanied by the thoughts, feelings or lack there of but only of yourown
others will think more feel deeper some might try to numb it all out like you did
but that's looking at other people
so technically as a solution for you, it si a valid, I'm not gonna say good, but a valid one
But that's not with thinking of other and well you know bc you've tried that you can't not think of others and try to protect those, even if the enaswer seems right for yourself