Well if you "can't concentrate" in the book you read then you better use glut or glew. I know one thing for myself - a book in most cases is a lot better than any online tutorials or videos. And if I don't understand something in the book then I know that there's something important that I am missing. It can be anything - from programming skills to math and 3d concepts. I'm not sure anybody is willing to play tutor on skype - there are schools, colleges and courses for this.
One more time I didn't get what you mean - because statements like this:
And i couldn't understent anything from it(i cant foucse its to hard for me )
I can not concentrate in the book i nead to hear that.
are really vague - it's really hard for people to guess what you have a problem with. Can you define better what you find hard - 3d concepts, maths for 3d, GPU usage, device and context concepts etc.?
I don't mean to discourage you, but the problem you have isn't really defined - I can find anything hard - but others can't help me even if they are willing if I can't even define what I find "hard".
Edited by lightxbulb, 18 May 2013 - 01:36 PM.