Came up short
I liked what you were going for with this. I have a phobia of spiders as well. It's such an intense reaction, though, that all rational thought or logic is abandoned as soon a spider is introduced. But I digress, I would have liked to seen this completed in full. I think a lot of what's holding you back is yourself and your need for perfection, as it is sometimes with me. You had a great idea, and as long as you can push yourself and see that idea through to the end, you have a leg up on everyone else; the ones that have ideas, but then never produce anything.
Again, this still wasn't bad, I just think you gave up too soon and sold yourself short. Keep at it!