How do I set up my Trial Version of Creative Cloud?

This is probably a simple issue:

I logged into my Adobe account to register for a Trial Version of Creative Cloud. 
I don't know if it took effect--I received no notification or instructions.  But, now the "trial" button is greyed out, so I'm assuming I have it now.

I see there are options to download various apps in the Cloud.  Shouldn't I just download them all?  (I thought they all came downloaded and ready to run.)

And, with a trial version, will I be able to add CC to my laptop?  And, if not, can I set up another trial version on my laptop?

Thanks.