Taking the LSAT in Jan, how should I use the LSAT starter to get the most of it?

Hi,

I have written the LSAT once before in October and got 143. I want to get 153 on my next one in January (which is in six weeks). Im aware it will be hard but I have had practice before which I studied for my first one, so I am not starting from nothing. Please let me know your opinions!