Mater Dei Catholic College training and pathways specialist Richard O'Connell said it all comes down to having a work-life balance.

"Students should have an organised approach to study like developing a study timetable and then mixing it up with healthy eating, exercise, as well as involving themselves in a bit of a social life," he said.

"Most kids are pretty good with balancing work, sports, fitness and study, but when year 12 students return it's trial exams and that is when time and stress management becomes important."

Kildare Catholic College careers adviser Karen Murray said how students study will all depend on what learning methods work best for them.

"Some like to have a timetable and stick to it; for example, they might break their day in half-hour study blocks for each subject," she said.

"Other students prefer to have a study bank, rather than a strict timetable, where they might have a goal of studying maths for 10 hours over the course of the week and then just cross off each hour.

"But, students might find by the end of the week they've only completed three of those 10 hours and know that they will need to plan better the second week."

Like Mr O'Connell, Mrs Murray said breaks that include leaving the house, like walking the dog or meeting a friend for coffee, are really important.

"Students should make sure they are going through the syllabus and have an understanding of all the dot points and then highlighting the ones that need revision," she said.

"There's a natural tendency for students to only focus on the subjects they struggle with, and while that is important, students can't neglect the other subjects as they might be sitting on a Band 5 for English, but could get to a Band 6."

Wagga Christian College year 12 student Cloe Hindebrand said she finds herself more productive when studying 30 minute blocks compared to one hour blocks.

"These holidays I'm working a bit at my casual job as a cafe worker at Noah's Ark and then when I go home, it'll just be studying," she said.

"I'd like to finish my last assessment task for physics, that is worth about 40 per cent of my mark, as well as making sure all my notes are up to date.

"There's different goals for each subject and hopefully I'll be able to smash these goals I've set for myself by the end of these holidays."

The 17-year-old said she will often choose to study her least favourite subject first.

"I'm feeling pretty good about what I've learned so far, it's really just getting concepts in my head ready for the practical applications," Cloe said.

"It's a bit stressful and daunting with the upcoming trial exams...and after that is the HSC.

"I can't imagine being in the exam as it's just been building up to the finals and there's been a lot of pressure that I've put on myself."