Reddit mentions of Neuroscience For Dummies

I am super interested with no background too! I read Neuroscience For Dummies on my kindle. The format was a little wonky, so I recommend getting the paperback. It was interesting and a semi-easy read. I went to Star Talk with Neil deGrasse Tyson and the topic was The Science of the Mind. It was great! I chatted with Cara Santa Maria and asked about her recommendations for interesting neuroscience books. She said I'd love The Man Who Mistook His Wife For A Hat. I've been meaning to read it! Also, checkout Amazon's best sellers in Neuroscience. Read reviews and see if they fit your interest. Let me know if you find anything interesting.

Scholarpedia is probably a good starting point for you if you are looking for a website which provides a fair amount of detail. It is like Wikipedia but it is edited by neuroscientists (Wikipedia is also often a good starting point if you want to understand some topic better).

If you want a must-read you need to narrow your focus more. Are you looking for something on medical neuroscience, cognitive psychology, biochemistry, computational neuroscience...? Are you looking for something for a layman or something more technical? Given that you are a high school student you will probably want to start with something layman-ish which doesn't make you frustrated with not knowing the technical details.

Books are often of higher quality than websites because they are edited and you can often find user ratings on them (see for example this book).

I was just about to ask if there was a Neuroscience For Dummies book, but already found it: https://www.amazon.com/Neuroscience-Dummies-Frank-Amthor/dp/1118086864/ref=sr_1_2?ie=UTF8&qid=1468249600&sr=8-2&keywords=neuroscience+for+dummies