Compelling personal reason for migraines

everyone. i can use abit of advice as i am stuck and cant figure out what to do. So in 2015/2016 i was enrolled on a 4 years degree. Which is 1 year foundation year mathematics and if u pass u progress to a 3 year degree of mathematics. I passed foundation year with 86 percent. and i decided to change uni to do my 3 years of mathematics. During my january exams my grandma fell seriously ill and i couldnt concentrate on exams. and she passed away in february. my mother in law was very close to her and she fell ill and i had really stressful time for the rest of year. as i was looking after her. i am not on any papers as her carer as i didnt needed any funds or needed to claim anything. she is diabetic and arthiritus patient so cooking and cleaning for her and something staying there for weeks. i couldnt concentrate on my studies and i failed the year. u can imagine how hard it was. Now i have got place in my old uni to repeat my first year coz of my good grades. but as i have already used 2 years of tution fee funding i need to pay for first year. I cant afford to pay myself. i really want to get degree and finish my studies and go into teaching. When circumstances were good i got good results. I want to apply for compelling personal reasons to get funding for whole 3 years but i have no evidence of caring for my mother in law. i have only got death certificate of my grandma. can someone please advice me what to do.