All I'm gonna say is that you still can. I know people who have started a different job or begun working for the very first time really late in life, like past their fifties. Or people who have dramatically changed occupations many times throughout their lives. There are plenty of opportunities to study in Australia. You just need to pick and start something. Just getting back into study mode will get the ball rolling. I fyou hate what you have chosen, you can change courses, but the biggest step is the initial one. Once you're in the system you will embrace it and work well within it. You will find your niche. Why don't you go to a career counsellor for an occupational aptitude test?