Hey Roly, don't worry, its never too late to start studying. I've never studied for it every night so to speak, but i also did something related to it atleast 3 times a week i'd say. Whether it was just exploring essay topics in more depth before writing them, completely summeries of infomation, or just reading the texts i tried to do something productive. I'm not necessarily aiming for over 40, but around 38 would be nice.
To answer your question specifically, i have started to 'buckle' down on it now. I'm starting to complete practice essays in timed conditions, and give them to my teacher to mark. But don't worry, i left english in favour of my other subjects too, don't we all at some point?
how have you been going with the SACs?