Some of what you are saying sounds like me, somedays (especially school hols) I won't get a chance to get out of my pj's, I also have four boys 6,4,2 and 1 and it's a handful having to run around after them, but do try and get sometime for yourself. Hard as it is, even if you go for a relaxing bath when your DH gets home. My DH is a truck driver (only local) but he's usually gone by about 5am and not home til 6pm, so I know how hard it can be, struggling on your own everyday. Where about's in Brisbane do you live? Maybe once this rain has gone you can take the kids to the park and get some fresh air yourself. You'll also find once bubs is a bit older and in a better routine that you won't feel as tired.

hugs xoxo