Just an out-of-box suggestion: since your brother stays in Batam, can you talk to your brother and ask if he can hire an helper over there to help (I heard hiring an helper in Indonesia is one quarter of the cost compared to Singapore). You can offer to shoulder some of the cost for let's say 6 months. So in exchange your mother stays and help you through this difficult period. Don't quit your job, since your husband's income is unpredictable.
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