If you are serious about gaining a very good A level grade but your DG assessment was not what you wanted then you will need to follow this style of course.
Use the Maths Box Guide to steer your revision alongside Maths Genie.
Master all of the Maths Genie AS topics.
Then move onto the old Core 1 and Core 2 papers (on PMT).
Work through all of the mixed review exercises in the Year 1 Pure Text Book.
Revisit past exam questions using the Core 1 and Core 2 Topic questions (ppt)
Each week complete an essential skills sheet, but make sure you complete lots of exam questions too so you can apply the essential skills.
12 weeks of hard work will get you to a much stronger position.