Its not the end if you have to repeate a year, there are so many circumstances where people have to do this, ill health, unable to complete exams, moving etc. Whilst school is important it does not define you, these days employers also look for experience. I have 12 GCSEs A-B grades, 3 Alevels, A degree and an access course in health. Applied to uni fully fitting the grade profile, knocked back 2 years in a row because i didnt have any health care experience to get on the paramedic degree, so i went and applied for a lower ambulance role to gain experience. Other people had to do the access course as they had the experience but not the grades as they didnt complete school. There are ways around it if you fail the first time, dont let it define you. Trade jobs, apprentice jobs are so in need right now and beats sitting in an office attached to a call centre phone. People mock mcdonalds workers, i was turned away as i was 'over qualified' now those managers earn a shit ton more than i do and i run around with skills i use to save peoples lives. I dont know you full background ie mental health etc but way i see it from what yoive said getting put back a year is not the end