Education/training: These are important though there's zero agreement on what type of education/training is better or more likely to land you a job. Unlike, say getting a degree from the right law school, there's very little guarantee that getting into the right conservatory program will actually guarantee you the skills & contacts you need to land a paying job. (And by paying, I'm including the elusive golden ring of acting we call 'a living wage' which I'll define personally as being able to pay rent, buy food, and treat myself to an annual mani/pedi with the income earned from only that professional pursuit, and not the mish-mash of several 'jobs').
Interviews: You will be prepared but you will still be nervous. You will have your materials ready - your resume, your portfolio, your witty comebacks for every possible iteration of the "what do you see as your biggest strength and your biggest weakness" question.
We call these auditions and as nerve-racking as you think a regular job interview is, multiply it by 100, because chances are you'll head out on auditions about 100 times more than the average career will require you to interview (unless you happen to be Katie Couric, in which case you are the interviewer and no the interviewee which is a whole other ball of wax).
New job training/orientation: For your typical job, someone hands you a manual, or someone who's leaving the job may train you in what they 'typically do'. You can also take some time to figure out how you will make the job your own. Most managers will understand that you may need to make a few mistakes the first time you complete a process, but expect the amount of mistakes made to reduce each time you complete the process.
Actors rehearse - and we have a different manager (read: director) for almost every new job. While most actors have a process (I hope!), there's no real instruction manual for the job of rehearsing. Every role has different challenges - for this one it might be line memorization, for another it might be remembering which of 6 doors on set you enter at which time in the show, for another it might be making your on-stage love triangle believable when in reality you have no chemistry whatsoever with your cast-mates off-stage.
Evaluation: Every dreads the annual review: someone who knows very little about what you do on a day-to-day basis judges your performance of a job based on criteria that may or may not have anything to do with your abilities or efforts, or even what you are attempting to accomplish. This is typically your Manager.
When I read this description, I realize that there is quite a bit of overlap at this juncture, except we call them "Reviewers". And they happen (hopefully) more than once a year. And they are public.