Flinty, start with getting to know yourself, what you like (your sense of humor perhaps?) and what helps you when you are having troubles (your honesty?) and build on those. Thank yourself when you help yourself and get to know and truly enjoy the fun things about you and those attributes and aspects will lead you naturally to more. You're focusing on your negatives; just switch your focus to your positives so they can help you. That's where your wonderful intelligence comes in. Too, it's okay not to like aspects of ourselves, our weight (I'm 265 so know about being overweight and underfit :-) but those are not "us" they're external features. I'm finally, at age 56, getting my physical act together and working to improve my health which is mostly a matter of losing weight and increasing fitness. I'm having a really good time thinking up ways do that in ways that I enjoy. Our bodies are part of us, they've done some really wonderful things for us, taking abuse/overeating and managing to still work well. I sometimes talk to my body as I would a friend, apologizing for relying on so much to help me with some of my mental stresses, ignoring it/not having time for it, etc. It makes a big difference in how I feel/think about my problems.