My biggest personality flaw

Some days I feel very expendable. This is really something I have struggled with my whole life. It comes and goes, but I did have a good stretch of a few years there where it wasn't a problem. The last year has really been all about not letting this feeling take over, as obviously the events of the last year made me feel very expendable indeed. The week I broke my arm and had surgery oddly made me feel better as the 3 people I reached out to when I needed to schedule surgery all responded immediately. But this past week has been a bad one. It would be great if I could figure out how to get from week to week, day to day, without always questioning whether I really matter to anyone. I mean anyone other than my dog.