Should I Try to Start Highschool Early?

[xcriteria]

Here are some sits that offer a ton of online learning:

https://www.khanacademy.org -- covers basically all standard and advanced high school content and introductory college content in core subjects.

https://www.coursera.org and http://edx.org -- these MOOC (Massively Open Online Course) platforms offer hundreds of classes from top universities for free. In some cases you can pay to get a validated certificate but they don't generally offer traditional college credit. But you can learn and there are some ways to get credit in some subjects through examination elsewhere like with CLEP exams.

MOOCs can be taken live during the dates they run, and generally have a lot of videos and some optional assignments, exams, and readings and discussion forums. Or you can usually sign up after they are completed and still access the content. There's no obligation to complete these so feel free to sign up for everything you find interesting and explore as you desire, or you can treat them as serious courses and complete them and often get a printable certificate.

If you have particular areas you'd like to study I can try to think of more specific resources as well. And TED talks and other talks on YouTube​ are another way to learn, as are documentaries and so on.