PS: You can't delete a thread

It really showcases your creativity...

Seriously: if you can't get an idea you can't get a map and you can't compete. Simple as that.
If you need ideas, play through other portal 2 maps, see what you like and what you don't like and/or use other games as inspiration.

Also an all caps title like this isn't really a good idea, I took the liberty to change the title accordingly.

Finally:
Not too compicated, but not one room
Many rooms but two doors...
There is nothing even remotely close to somewhat of an idea you have/what you want to create. Just mess around in the PTI by yourself and test test test until you end up with something nice. If that fails, just give up. Maybe another time you WILL be able to come up with something awesome!