Job change advice.

I’m at a crossroads, I’ve interviewed and been offered another job in my same field. I love my profession, absolutely love it and have always loved my workplace however they won’t increase my pay and I’ve asked twice since my workload was majorly increased. The job offer is exactly the same perks and role but an increase of $200 per week. Now, I’ve always told myself that it’s not worth chasing money if you’re happy where you are but that would be a massive help given that I’m a single parent of several children.
I have no family to turn to and I don’t know how to make this decision. What are some questions I should be asking myself?