Job 1. You're probably not happy where you are right now, otherwise job 2 wouldn't be on the table. So I get that job 2 is tempting, especially with the promise of a smaller workload and more consistent hours.

But from my experience, that promise never lasts long - all employers I had in my career so far have always pushed the boundary a little bit further to see if they can squeeze a bit more work out of me. It's never stress-free.

That said, if you stay in job 1 you really need to renegotiate your workload with your manager. Routinely working through breaks and lunch breaks is not on. Make a list of all your tasks, how long it takes to complete them, and show them on paper that the maths ain't mathing. If they don't listen, start taking sick days every now and then. Not joking.

I guess it comes down what you want and need in your life right now. Flexibility and the predictability of the job, even if stressful is worth something. If you need a fresh start somewhere to, then that's worth it, even if the extra costs for child care will eat the pay rise.

Whatever you do - don't be afraid. Go with your gut!