Where can I ask questions (career advice) about jobs in Aviation Management?
There is a huge demand for aviation professionals. However, how that demand is looks like is very difficult to answer, since it's a pretty fragmented market and getting an overview is very difficult.

As such, you're best chances of understanding it are:


Going to recruitment fairs that major airlines attend.
Attending events that airlines hold themselves.
Trying to get in touch with human resources in an appropriate way directly.


From this you should be to gauge how interesting a candidate you will be. As with most things, this is hardly an exact science. Getting a program with a placement/internship as part of the course for instance might be quite beneficial. As for the no previous experience, I think this is the case for most people heading into this area.