Oxford Dream Gone

Hi,
I went to the open day at Oxford as this was my dream university and I was so excited. Yesterday I did the UCAT and I got a horrible score of 1630 B3 (I’m so sad because my average was 1950–2100 B1/2, which I know is quite low but not as low as what I had), but my exam was really difficult, more based on A and B than C and D. I’m defeated. I am 25 and I have been studying while working a full-time job at Oxford University Hospitals NHS. I am also doing an Access to HE: Medicine (confirmed that it is accepted by Oxford), and I have been studying really hard for the UCAT. I feel like A levels will be more beneficial, and I do have predicted grades of A* A* A in Bio, Spanish, and Chemistry. I genuinely don’t know what to do. On the open day they told us to apply even if we have a low UCAT, but I think it might be useless, I don’t know. Please help me (I know a gap year can be an option, but I just don’t want to, I have been working really hard for this).