Thanks for writing to us on AskGuru.
Sorry to hear that you lost your job.
To qualify for the Public Rental Scheme, you must be at least 21 years old with a gross household income not exceeding $1,500 per month, although HDB will review your application if it exceeds that limit, based on certain circumstances, such as household size and expenses such as medical needs.
Applicants should not have children whom they can live with, or who can afford to provide other housing options for them.
Check out our guide which covers the eligibility criteria, application procedure and possible rental costs: https://www.propertyguru.com.sg/property-guides/qualifying-for-hdb-public-rental-scheme-13284
Hope this answers your question.