Hi, It is a common concern to know what is the corret path to pursue your education and career in and it happends mostly in and after your HSC. Now that you are pursuing science stream and are in a dilemma, I would suggest you to go for career aptitude testing. Though it is not confirmed that your esults give you 100 percent results but 99% it helps you to clear your vision. Most importantly they not only consider your academics but your personality and interests are also taken care off. You can apply for this test online and as well take a help of a registered career counselor. You may find many. Hope this helps you. Let me know if I can help you. Good Luck.