Repeating the others... You simply can not properly grasp a software as huge as SONAR with "jump in and learn as you do"-approach, especially if you have a certain task under work. You have to study, really study.
My recommendation always is: Read the
whole Reference guide, all that 1850 pages (of course you can skip parts that are obviously unnecessary to you). After that you have some kind of dim picture of what can/can not be done, and where to look. And you know the names of the different parts.
Another approach is to click every single window and dropdown option and check in the Help files what it's there for.
That means work, yes, but it also means results.