LNAT

I am preparing for sitting the LNAT in December and completed the 2010 LNAT practice paper 2 on the website and only got 20/42 and I am worried that it is too low. I found online that you should aim for 29 so I am a bit stressed out. My predicted grades in my A levels are A*AA and in other papers I have got scores ranging between 20-25. Does anyone know what type of scores Durham had given offers to last year (2019) ?? & is it possible to still get an offer if you don't do well in the LNAT?