Welcome to Gaia! ::

I use watercolors, and nothing but watercolors.

I avoid colouring pencils like the plague and prefer natural media to digital.

I started with watercolor pencils, which are rather easy to use, and you can have neat effects with them; blending colors is also easier compared to normal pencil crayons. You also have more control of where the color is going, compared to regular watercolor paints.

I'd give you a step by step, but firstly, I must ask; do you ink your pictures?

What you might want to do, if you're afraid of ruining your originals, is make a photocopy and try coloring on that, It will work better if you ink your drawing first as you'll get a better photocopy. Inking is very important, thats a good skill to get down early on. Just get a pen that puts down a good solid bead of ink. Dont use those crappy bank pens, get some good ballpoints or felt tip pens and trace over your pencil lines. Once you've inked everything, you can use an eraser (I use a kneeded eraser) to erase all your pencil lines. Then you have an inked drawing.

For starters, you may want to try colored pencil. Its a good starter medium. As you get better, you may move on to acrylic paints, water color, markers, or even digital coloring. Its up to you. Maybe see some art you are drawn to and find out what medium the artist is using, then strive to achieve the same results.

Glad I could help. If you need more info on specific art supplies, PM me and I'll tell you what to get.

I've done that before... ruined a good picture with my colouring >.>

But then I kinda realized that if I outline the picture with like a pen, the colouring is better... I doubt anything I say will help xD