Hello Gudern, Welcome to the Guild!
To get you started, there is a great tutorial in the sticky section of Tutorials, called
Quickstart Guide to Fantasy Mapping: http://www.cartographersguild.com/showthread.php?t=4276
From there, go to
Hand Drawn Mapping for the Artistically Challenged: http://www.cartographersguild.com/sh...ad.php?t=10655
Once you have completed those two tutorials, you'll be well on your way!!