Problem!

I haven't learnt all glossaries and things or targets that need to learn by heart I didn't learn a lot.But I understand Unit 1 Economics and Business Studies.So is it okay if I didn't learn ALL of the glossaries???
I think in Business Studies we need to learn by heart more than Economics is it right???Economics we just need to learn formulaes but in BS we have to remember more!

So I think I need to concentrate in all days left!
(MATH.....Disaster!!!!!!)