[d_r]

That's fair, but who actually cares about how good your code is? Make it work. Hack things together. After you practically code for longer, patterns will emerge, you'll refactor and rewrite as necessary. At any point in time, if I look at code I have written earlier, I shudder at how awful it was.

Finally, "fear that I am going to fail" is silly. It's the other way. You're starting at the point of failure. You have nothing right now. Accept that, and then you won't have to hold yourself to such a high standard. Start somewhere (and remember that you "suck" at first), and keep at it. Seriously.