About Artistic Block

Artist's block or just plain fear? Lately I really haven't been able to think of
anything to draw or paint, or at least I thought so. I took paper, took the pen, draw
a line and stopped. I stopped thinking: "What the heck am I doing? I have no ideas.
I haven't thought about anything to draw." So I put the pen away and hid it.
The truth is, I do have loads of ideas. I get ideas every day. I travel by bus 3 hours
per day and think about things to draw. I see interesting shapes at the nature, I read
something and think "I'd like to draw that." But why don't I draw it then? Is it the
infamous block or is it actually just fear that I can't do it? I think it's the fear.
I constantly think "I must be perfect, if I'm not perfect there's no point doing anything."
That thought keeps me from drawing, that thought keeps me from painting.

It's rather annoying.