Its quite good for your first day, plenty of tutorials you need to do now. And its good to see more and more people getting involved with gfx.

The following steps to success;

Learn filters, and apply what you learned in tutorials to your work to make it better.

Learn the tools of the trade, the toolbox is your best friend, use him a lot.

Learn Layer Styles, these can give excellent effects on text and buttons.

Learn Colour effects, the hue/saturation tool (ctrl + u) and the colour balance tools are great for changing colour or taking away colour.

Learn Blending modes - These are the best things for blending in your photomanips and abstract renders.

Be Creative - sometimes its just best to just fiddle round with any settings and see what it comes out like, it helps develop ideas.