Dude you just need to practice and practice all along

add me on skype and i will ask u something k?

You need to pay for PS
Or you cant get it because of Windows xp

Maybe buying a graphics tablet helps.
Painttool SAI is a good tool too.

I have gimp and other stuff. cant afford PS or a graphics tablet . I need a teacher for basics

You don't teach people how to draw. Drawing is about expressing yourself and showing your styles. You can follow tutorials, but they won't always work everywhere. The best way to draw is to make a idea, and go for it.