There should be online calculators that can help you to see what your monthly payments would be with different house prices, down payments and interest rates. I don't know what interest rates are like there, but they have increased here a lot over the last year. My husband and I were lucky to have bought when they were lower.
Also, remember, it's not just the mortgage payments you need to consider. If it's your house, you have to pay for any repairs, so you need an emergency fund for that. In our case, we also have to pay a monthly bill to cover things like security staff's salaries and maintenance of common areas.
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