My suggestion start small. Start with a collab, and an edit job. Check here.

The original image is gone, so I'll re-upload it to tiny pic.



Try 'pimping' this first. And then we'll see where to go from there. :)

Hello and welcome to Pixeljoint

My sugestions are:
1. when on the forum, before you listen to somebody, click thought to theyr gallery and see if they know what they are talking about or are basicaly as newb as you (no offence)

2. in this case Greenaraven is basicaly right. Start small.
But instead of colab, which imo is not a good place for you as a beginner if you really want to learn something, start really small.
Like with a cube. Not joking.

Find tutorial section and go one by one. Lot of simple geometrical objects involved there.
Also what I wrote HERE might be helpful.
Stay with simple shapes until you learn the basics.

For more fun, you can ie make a still life image made of basic primitives.
Or a geometrical landscape.
Or make a simple cartoony blocky character.

Just stay small, clear, simple style, until you'll feel (and experienced people will tell you) that you know what you are doing.

Good luck! ;)