Will I get lost in the program's user interface with so many functions?
No.
The clever and practical inspector windows manage themselves if you don't do it. If there is no more space left for opening all inspectors, the unused ones close themself again.
And – the inspectors are smart. If some stuff is not required, it's not shown or grayed out.
The most diligent one is the Content Inspector. – Like to take a look?
This means you can concentrate on your work.