Make a realistic study and homework routine that you can stick to. Include breaks in it. Don't cram, spread it out by doing a little bit everyday. Try to take advantage of your weekends by studying. Try not to let the JC/LC eliminate your social life cause it will just drive you mad and unmotivate you. Just focus and give yourself a goal to aim for. Hope this helps, Good Luck!
study the chapter that you have just covered then do exam questions on line to ensure that you know everything. This is the best way i find and make sure that you correct them and learn from your mistakes.