I reckon the module 1 is hardest in terms of the transistion you have to take from GCSE to A level and the fact that it is tricky in selecting the right part of module 1 into the questions in very limited time, I got a C in module 1 and then approached Module 2 and 3 differently and got A grades in them, then at AS I had an overall A, its all about exam technique.
I think i told you about that already, but your spec is Edexcel, so i dont know how the mark scheme works but it wont be much different from AQA.
For Knowledge, u just need to define the key term in the question at the start of ur answer and throughout the answer use specialist vocab.
For Application, answer in the context of the question, apply it specifically to the company.
For Analysis, explain both the pros and cons of what you put.
For Evaluation, tell the examiner what it depends on and how successful it will be and what can affect the decision the business takes.