B) hopefully your bottles are not all in the fridge now... Wait at least another week to try another one. Bottle conditioning is an exercise in patience. They will almost always taste better with a minimum of two weeks.
C) there are many factors you can tweak to make a better beer; ensure your methods are sufficient to cover all the fundamentals. If you haven't yet, buy THE book by Charlie P. or look on-line at "How to Brew" for free. I have both on my shelves for reference material.