First year of uni is next year, are there any particular habits that I need to start developing?

I'm currently in year 12 and I understand that the leap between highschool and uni is huge (my sister is in uni and she's always saying how much more work it is compared to highschool)<br><br>I know my study habits aren't perfect (no one is) but I do want to make next year as easy as possible, especially since I'm going into a field of study that's highly competitive and time consuming.<br><br>So, what habits are recommended?