I think that there is something to be said about quality of vulnerability. Life can be tough, even for those who seem to have a picture perfect life. We hide behind lenses, snapped and edited before ever posting. Sharing only the moments that show our edited and high-lighted moments in life. I suppose I could get on my soapbox, but I think for now you've covered the bases well. I read every word.
I would just say that Christ makes all the difference. He enables us to live with a purpose and LOVE. I think that's a huge part of it. The purpose? To Worship our Creator. As you noted on... thinking less about yourself and focusing on others is the key. To LOVE and worry less. :)
I agree with you @whitneynoel; when one lives a Christ-centered life the focus is no longer on us it is on HIM :-) And maybe that makes it easier to "not care" what others think of US (unless we talk about caring in the sense of being a good example), because it's not about us, it's about reflecting Christ...what do you think?