How to learn a Latin GCSE set text?

Merely memorising a set text is neither fun nor advisable as you could be given any section in the exam. To really understand what the author means, as well as be able to translate it, you should read the Latin next to the English. You could have the Latin on one page and an English translation, as well as an explanation of the grammar on the other side. Alternatively, you could print out your Latin text with double spacing, and write the English underneath.

I would also suggest using colours. For example, highlight all the verbs green, any ablative absolutes yellow and the nouns red etc. This will cement your knowledge of the trickier pieces of grammar and highlight any literary devices such as tricolons. 

It sounds dull, but if you ensure you understand every word you will find that the literary criticism comes naturally. Good luck, and try to enjoy the process!