Welcome to the Guild Zaelarion! Well the good news is you can! You have come to the right place to learn the hobby. Just spend a couple of hours browsing the tutorials section and pick a few that look interesting to you. If you don't already own any software I'd start by downloading GIMP 2.8. It's free and there are allot of tutorials that use GIMP. Play with a few of these and throw up a WIP so that you can generate helpful feedback.