Gphc resit advice

I’m unfortunately looking to sit my third and final attempt. The first time around I didn’t study enough (in November) and this time around I passed clinical but not calcs. Has anyone been in a similar situation? What did u do for resits to improve and are there any courses you would recommend?

I’ve already done the Rps course and pharmaceutical press books. And as many past papers as I could find. Any advice would be great.