Just because it's not offered at your school doesn't mean you can't do it. Distance Ed is a common route students take to complete subjects that aren't offered at the home school. Keeping in mind that to do it, you require that motivation to self-study as you aren't in a physical classroom (it's virtual/blended learning).
Well I guess the question I have for you (and you probably won't be able to answer it in depth now), but do you have any idea as to what you want to do after school? From what I can gather based on your subject selection, you are more of that arts/humanities type of person. Is it wise to choose Science if that isn't really what you're interested in? Probably not.
The goal of elective options in Years 9 and 10 is to provide you with tasters of the different disciplines - to give you a better idea as to your pathway and VCE options. If you genuinely like Science and want to learn more - two questions: Do I want to do it in VCE and
what type (as Gen Science disappears after Year 10 and breaks up into specific subjects - Bio, Psych, Chem, Physics etc).
Also keeping in mind
any subject at Year 9 is significantly different from VCE.
