Yup, finding a mentor will hands down be the best investment in your climbing career. That, and learning to utilize the best piece of equipment you already have, your brain. "Climbing is a mental game" (WHOOPS, looks like I quoted a book Jah forbid!). Keep a beginner's mind and a sponge-like attitude towards everything. Constantly evaluate every situation to maximize learning...Why did that work? Why did that fail?
Visualize. Emulate. The best mentors will facilitate this by generating the safest possible environment to allow you to extend your mental, physical, and technical skills out of the comfort zone and into the realm where learning can take place.
Hear and Forget
See and Remember
Do and Understand