Yo[u]Value | Online Self Help and Improvement

What career would I pick, if I wanted to find and develop alternative energies? What would I major in? How much money could I be making in these fields?

I’m trying to work out my next career move and the tests I find online make you fill them, out for 45 mins then tell you you have to purchase them to see your results – argh!

Every test I take, when I’m done, they want money. Anything free that you all have taken and know you’ll get your results? Thank you so much in advance.
I mean online that I can take this evening.

I will be starting university soon and I have absolutely no idea of what I want to study. Are there any free online tests I could take that could give me some options?

I am only a junior in high school, so I’m not thinking about a career seriously.

I just want to find a test that suggests possible careers that would be good for you.

And free tests, by the way. Thanks!