Why I'm not writing

I've been staring at this blank page for about an hour now and thinking, what the heck should I write? The problem isn't the material, I mean, the plenty there..... harsh, emotional, happy, sad, paediatric, mature stories to tell. What it is really is how to say the things that I feel and hear and know... That's quite the dilema for the writer in me, isn't it? After all, my gift is expression and all that other nonesense. I am a word smith and that is my trade. Nonetheless, everything my mind conjures seems an inadequate comparison to the picture I have in my head. I don't know whether I should blame it on the limitation of the English vocabulary or just the patchiness of my capability.