Jessica stranded in UK Medical Expenses

I'm Jessica Koomalsingh and I came to the UK from Trinidad and Tobago in March to assist my maternal grandfather with his recuperation from a surgery he was scheduled to undergo. My mother couldn’t accompany him because she’s taking care of her mother with Dementia. Due to the pandemic, Trinidad and Tobago closed their borders and I was unable to return home. It’s been 7 months now and I’m reapplying for assurance to stay in the country! I have since depleted all of my savings to just to survive here and grandfather who is a pensioner has very limited resources. My aunt so graciously opened her home to me but is also under financial constraints. I am quickly becoming a burden because I cannot work here to contribute to my upkeep and my parents try to support me as best as they can but with the pandemic they have been also been affected so funds at home are limited. Due to the border closure in Trinidad, I have to apply for an exemption to enter the country which I have submitted documents for since July and have gotten no follow up from my Government and still awaiting approval just to return to my home & family. But trying to return home in itself is a big financial issue because air travel to my country has now increased exponentially. Unfortunately on October 16th my paternal grandmother passed away in Trinidad and I was devastated that I couldn’t attend her funeral to be support my family in such a emotionally distressing time. On the 18th, I was awoken with an excruciating pain in my lower abdomen, I was left with no other option but to seek medical attention where they diagnosed me with Appendicitis and needed emergency surgery. I had to stay in the NHS hospital for 2 nights.  Whilst trying not to become a bigger burden to my family, i just incurred an additional debt of £4600 with absolutely no means of being able to pay it back! This £4600 debt converts to approximately $43240TTD because the exchange rate approximately £1 to $9.4TTD. This would be a years of debt that I would now have to repay