@Freyamum it sounds like you are dealing with so much more tha just frustration at being a Sahm. We moved to perth when I was pregnant with our 3rd. I hated it. I cried every day. I still have many days when I hate it. I miss my friends who had known me for 10 years and who had supported me through good and bad.
I have friends here but it's still lonely. I work but I'm so focussed on getting through the work so I can pick kids up and then come home and do dinner bath bed etc. It's 9pm here and I'm just starting lunch boxes. I haven't eaten (DH is away). I still have one kid to settle for sleep and one had an anxiety attack tonight over school work and that I'm never there for her.
I interact with people at drop offs and pick ups but mostly people are rushing. I have to either go to work or take my youngest somewhere. I would have a coffee with a friend once a month if I'm lucky.
I'm not incredibly strong at all. I just have to keep going for my kids as they need me the most. And I have the 10000% support of my husband. That makes the world of difference.
I think you are doing so many of the right things. Where you're being let down is by your husband. Would he look at doing counselling?