Better to freak out now rather than right before your hsc exam like i did
Its good though that you are aware of the immense work load and do not put it off. Appreciating how much or how little time you have left is also a good reality check, cos I was for the greater part of the year, under the illusion that I had weeks and weeks of solid, 100% study time left. But as hours passed I realised, between playing a game or chatting with friends, that I was wasting my time. It's only january, just think logically about how you allocate your time to your study needs, what is most difficult for you and what has the most amount of work left to do, and just prioritise. I now, nothing was as satisfying as finishing off a clean set of notes, ready for quick revision. Just push through this day or week, and youll be fine.