Is it worth applying?

I am really keen to apply to the mst classical archaeology. They ask for a strong 2:1.

I had a horrendous first year at Oxford due to absolutely terrible family circumstances of which my mum suffered terrible harassment and abuse. It took a terrible toll on my grades and I averaged a 58% in my prelims. I obviously don’t have any other solid evidence of my performance but my professors are hoping I will get a high 2:1.

Is it even worth applying this year or is it best to wait until I have my final grades?