Thankfully, there are many tax relief schemes that you can qualify for.

By being a mother or signing up for a course to upskill, you are entitled to relief schemes that can help to subtract your taxable income by up to S$80,000. 

Full List of Items - IRAS | Tax reliefs, rebates and deductions

In case you were wondering why your child has an Edusave Account, it is actually opened automatically for every Singapore Citizen,

With funds consisting of the balance from their Child Development Account (CDA) as well as annual contributions from the government.