Am I being delusional

This is a bit of a long one - sorry! I am a solo mum by choice to the sweetest girl in the world. I'm also a migrant so although I have good friends, my family is all overseas. She's turning 5 months in a few days and I've been on maternity leave since she was born. Maternity leave ends mid July and I've been thinking about what my options could be.

Last year while pregnant, I took redundancy at work and then started a consultancy. Some friends sent work my way and I was able to make some money doing it, but not since I've been on maternity leave. Also, how well my business does depends on the goodwill of friends and that's an uneasy situation to be in long-term.

I've been thinking that I'd like to spend as much time as possible with her while she's still young and brainstorming how best to achieve this. I need to bring down my outgoings to do this and my biggest cost is 1660 fortnightly mortgage payments. I have a 4br 2ba house in Taupō (about 4 years old and 365k mortgage) that I'm thinking maybe I should sell, use the proceeds to clear my mortgage and try and build a smaller house with the balance.

Is this even feasible? Should I just give up and double down on finding a job. Is there another option that I haven't considered. I have some savings, that could possibly last us another 6 months after mat leave ends.

Oh wise ones, please give me your gentlest and best advice. 🙏🏾