Your C- in Spanish was four years ago. You have matured a lot since then, and you presumably have better study habits and less of that fear of looking stupid that typically plagues 9th graders. (Why the American education system starts language study at the height of puberty is beyond me!) Try to have confidence that you’ll do better this time with more effort and confidence. Once you’re past the early years, language acquisition is about hard work and not being afraid to sound like a fool.