Gcse stress! Help!

Hi guys as GCSEs are approaching, time is not on our side.
These are my mock results:
Chemistry - 8
Physics- 8
Biology - 8
Maths - 8
History - 6
Computing - 4
Eng Language - 6
Eng Literature - 6
French - 5
Do I have time to make them all 8's and 9's and to make computing and french 7's? Or am I screwed, should I just give up revising?
Please Help....

Yes. Why would you give up? The results are very good.

Just work a little harder on the lower grades if you want to do well in all, although I might focus on just keeping the quality going.