No worries. What I would always advise is to shoot in colour, find a method of converting to black and white you're comfortable with - using the Channel Mixer is a great way - it's simple, and fairly intuitive, and finally, use Levels (and possibly curves, and dodging and burning) to make sure you have a range of tones from the blackest blacks to the whitest whites.
To create more drama, you want to have areas with high contrast - e.g. the dark mountains against the light sky, or the line running down the side of the dark road. For portraits, to be kinder, generally you will not want such strong contrast, but the main thing is to experiment, and have fun!