Bad predicted - should I wait for adjustment?

I want to apply for a course in Kings that has a 42% offer rate and grade requirements of A*AA. It's the only course I've found that combines every subject that I love into one course and it's my top choice, so much so that I'd be willing to wait a year if I get rejected.

I have a pre existing medical condition which means I'm absent from school a lot and my recent attendance (and this was a good term for me) was 83% which was the second lowest in the year as I have a compromised immune system.

I was homeschooled until year 10 and then went into GCSE my GCSEs didn't go well as my attendance was 70% and I had to leave often because I'd get too ill to stay. I was predicted a B for bio and was going to continue it to sixth but was sick on the exam day and got a D. My GCSEs were AABCCCD but the course I'm applying to doesn't look at GCSEs.

I'm worried about my predicted grades and I'm wondering that it I don't reach the entry requirements on my predicteds should I wait for adjustment and apply then instead of being rejected? I know I can get the grades in my real exams.

In terms of work experience
I've done experience at a law firm
Volunteering for a pressure group
Food bank
Age UK
Shadowing a cultural psychologist

Should I wait until I receive my actual grades before applying to this course or should I chance it, explain my health conditions and hope for a conditional?

Thank you in advance for helping!