hi bumbleweed, I empathise with you on all the points you made.
I'm going through the same thing.
I think when the baby comes it can be all consuming and you ncan lose yourself for a while.
how old is your dd? mine is 8 months and it has got better from when she was newborn i.e I'm sleeping at least 7 hours at night which helps a lot, when your sleep deprived everything is a battle.
dd is quite clingy at the moment but i think she might be going through a phase. I did have a month or two when she wasn't crying for me every minute.
As for the weight issue can totally relate, I thought quite naively that it would just fall off in a month or two, but due to comfort eating and eating fast food etc (I mean you literally don't have time to plan your meals and eat healthy cooked meals when all your time is spent with baby) I'm bigger now than when I was full term!
Don't beat yourself up about it, lose weight when you're ready and have time to think about planning a healthy diet etc
I've only just started my diet now.
I can't say if you have pnd or not, it may be it might be worth seeing your doctor, I need to do the same probably.
I'm still not back to normal but it does get better, comparing yourself to other mums doesn't help at all.
Do one thing at a time, i.e if baby sleeping grab a bubble bath or quick shower depending on what you can get away with! or put make up on so you feel good about yourself.
I think a lot of new mums go through this, you are not alone.