P.J.
M.,
I know how you feel 100%!!! Ive been there with both of my older children and Im sure that within the next year I will be there again!!! The first thing I would like to say is that it will get better!!! Some things that worked for both of my older kids was when it was nap and/or bed time, I would pick them up, put their head on my shoulder, even if I had to hold it there, and carry them to bed while rubbing or scratching their backs and singing 'its ni-nite time, its ni-nite time, ni-nite time is here' and repeating untill I was laying them in their crib. As I layed them down I always told them I loved them and would see them as soon as they woke up, then I turned on a CD (usually Kenny Loggins, Return to Pooh Corner, its an awesome lullaby CD.) They of course cried for a little while, but I would turn the music up just loud enought that if I could hear them, it would at least drown them out enough that I could focus on something other then those screams.
My daughter also skipped crawling and my son did an army crawl, never a reg. one. One thing that you may want to try as far as getting a break from being her 'crutch' when she is walking is give her a smooth bottom launry basket to slide along while she walks...its also a fun way for her to move her toys about. You may have to show her a few times how to move the basket without tipping it over, but I found in the end it was well worth it!!!
Another thing they enjoyed was sitting in their high chair and playing with blocks or coloring while I was able to accomplish some of things that I needed to get done. I would also keep reassuring them that Mommy had to get this done and when shes done, she will be able to play with you (that is a reassurance that you can establish with her now and will help for a long time, even at 5 & 7 yrs old.)
I really hope that some of this may be useful to you. I also hope that you are able to get a little time for yourself as the other people have said, you need that time for you too!!!
If you want to chat ever, feel free to email me!!!
P.