First of all, welcome, Amy!
I believe the trial version does not allow you to install the assets (characters, props) that come with the training, so that would make it less useful if you want to follow along. There was a question from someone a few weeks ago who ran into that problem.
Does iClone allows you to create whatever custom animations/backgrounds/props you need? For example if I wanted to so a sport animation or a supermarket animation scene I can search for those props or just import these?
You can try the Content Store or the RL Market place, but if you have 3DXchange you can also import external models, for example from 3DWarehouse
Anyone on here give training?
There are RL training videos on YouTube, but when you run into specific problem, you can ask here on the forum. There are many helpful people, and some will create a tutorial right on the spot.