I am a sophomore in high school and became interested in physics, particularly quantum mechanics, about a year ago. However, I will not be able to take a physics or calculus course in school until I am a junior. I have been trying to learn physics by myself, but without a background in calculus have had to settle for learning mostly concepts as opposed to formulas. Mainly I've been trying to accomplish this by reading related books and internet sites, but without a clear-cut plan to follow or any way of ascertaining the legitimacy of these sources, I am lost. Any advice, references, or sites you could offer would be greatly appreciated.