I am a complete failure

I am a Foundation student for Jan 25 and I haven't actually studied this whole time. I have just completed bits and pieces of the whole syllabus throughout and kept procrastinating till now on. I don't think I would be able to clear this exam on this attempt at all. I really hope I could get over all this mess and start my prep all over again for May 25.It would be very dissappointing cause I have always been really good in studies but only by preparing a day before the exams. I guess I've learnt the lesson the hard way. Is there any way I could save this attempt if not any advice for preparing for reattempt??