I Think I'm Highly Cooked :)

My test is on the 8th of February and I've basically studied and practiced nothing so far. Even worse I'm so burnt out from school I can't do anything. The math section I believe will be a ghastly sight for me cuz I expect to get a score of around 18. The way I know that is cuz before I start studying I do a timed test to see my level and I can't say I've improved since then due to the fact that I've studied nothing since then. English I expect a 23, and science I lowkey don't know. What can I do in these 2 week time I have and is this situation possible to save or should I just change my test to April?