I'm trying contour drawing as of now. For simple objects, for now.Skip that then. Move onto drawing stuff you like to draw. Draw it alot.
This doodle thing is sort of unconvincing. It might be good for a comic-book style type of drawing, but I'm looking more to the erm, realistic look, so to speak.
There are loads of advice that can be given to intermediate to advanced learners, but a beginner is better off with just that - draw as much and as often as you can. There's nothing else to it.
One other thing I don't think I saw mentioned is to copy drawings by artists you like. Especially when you're starting out, I think this is even more helpful than drawing from life, because you learn how good artists handled problems, rather than trying to figure them out yourself.