haha not a bad beginning bro , try something simple with getting to know your program could take easy way and follow some tuts or do it like i did mess around with different things in your photo-shop , good way to start is always when using a render m8 hold shift down when you use Edit free transform when you re-size your image , once re-sized ALWAYS KEEP A UN TOUCHED COPPY OF IT in case you made a mistake. can always bring a clean copy back to the front to fix your mistake .
GL man need any more help can ask me in a pm will try help you out more
heres some tuts to look at :
http://www.gfxvoid.com/forums/forumdisplay.php?f=73