I am also applying this year, I was looking for some type of thread like this.
I am concerned about my extracurriculars too. Even if it's quality over quantity I still don't really have the quality, I've never been too focused on them as they don't matter in the UK and the rest of my life keeps me too busy anyway. I'm hoping this comes across in the application. I've put down in the extenuating circumstances, how I work 20 hours a week as well as acting as a carer for my mum. After this, 4 a-levels and epq I'm not left with much time for ECs. I've got: Caring^, Tutoring, Prefect, Y12 university maths course thing, Music lessons (only started a year ago though so I'm not grade 8 or anything), EPQ, and I started art as a hobby but Im not sure whether to put that down as it's nothing official or verifiable, just something I do on my own at home.
Anyways how is everyone else feeling, I'm a bit worried about the short essays and video interview, I've not even started yet.