I'm failing pretty miserably at this whole "body acceptance" trend, yet I'm totally fine with that.
This reminded me of something!
If you've got body image issues that you experience a lot of anxiety over, to the extent that that anxiety becomes a huge and defining part of who you are and how you think, would you be afraid to actually address those issues, on the grounds that the part of your personality stemming from them would kind of... die off? Like, even though you'd be a lot happier if you fixed your problems, you also, maybe, wouldn't really be you anymore?
Maybe to the extent that you set up these self-fulfilling prophecies (or hell, maybe some kind of /psychogenic/ thing) that prevents you from fixing said problems? Could you want something so much that the drive to /get/ that thing was more important than actually getting it to your sense of self that you'd find ways to sabotage yourself from achieving those goals?
(So you know that feeling you get in high school were you start getting /body issues/ and you know how to address them but don't? It's the same when you're an adult, because you keep procrastinating on fixing things and you don't know why).