You need to get your work out there by any means possible.
To see how it stacks up.
Having a script sitting on your computer or hidden in a drawer won't be doing you a whole lot a good.
If you can afford it, why not try a contest or two.
A good place to start would be the following:
The Academy Nicholl Fellowships in Screenwriting
The Austin Film Festival
PAGE International Screenwriting Awards
There are a few others worth checking out.
Do your research!