Hey there, sorry to hear what you have to go through.

With your father being a retiree, someone has to work to keep the family going. What sort of freelance work are you talking about?

Rather than only posting in Svc Noticeboard and JE that you're available, proactively seek for jobs. Perhaps you need to know what sort of job you CAN do and start emailing relevant companies directly to pitch to them.

Additionally you can try getting part time over the weekend to support your family. Example as someone mentioned - as food delivery, or you can even try getting part time as a waiter or work in fast food chain. You get food, and you get to bring home some $.

Diploma or Degree is only a ticket into the workforce. You can move forward with a better pay grade when you move up the rank in the company, or when you jump ship to another company.

I'll also suggest you see a psychologist - the government hospital offers such service as well at reasonable/ low cost.
https://www.mypsychology.my/get-help-government-sectors-my/