Im Lost In A Catch 22

I left school/college with a great education. I gained a degree but met my lifelong partner and have two gorgeous daughters. My partner works 12 hour shifts in a factory 4 on 4 off. I'm a stay at home mum. But I get so depressed and feel I should have been more. I've had part time jobs in shops but struggle with the costs of childcare and my family aren't supportive they work too.

I feel like I have wasted my life. My daughters are going to see a fat, lazy slob as a mother. Oh I've put on 50lbs since I first met my partner. I'm so unfit, no motivation and my brain is turning to mush because I'm stuck in the same 4 walls day in day out.

I passed my driving test 2 years ago but can't afford insurance so will never be self sufficient, will never afford a mortgage, never go on holiday ........ lost and stuck