i guess there is a lot that u need to learn and as u learn things become more intresting and u would want to discover more. Here is a link that gives some tips
http://www.adobe.com/products/tips/photoshop.html
It would also help for u to discover the work of flash. its dam cool.
I have just started gaining a lot of intrest in these tools
Besides this nothing beats Dreamweaver to code HTML pages