Johnny5, my advice to you would be to go for it with this in mind. If the worst happens and you end up failing once maybe twice and ending up in one maybe two Training Reviews, the following are sure fire ways of ensuring continued employment at the College:
1. Try to fail more than one course.
2. If your sim runs aren't going that well, run out mid-excercise crying.
3. Blame your instructor for number 2.
4. Try and turn your whole course against said instructor especially if he is a popular and well respected individual and do so in such a way as to guarantee you get a warning out of this.
5. If 3 and 4 don't work, blame the ATSA input and complain about them.
6. Try and turn your coursemates against each other and yourself. A good way to achieve this is to control in such a way as to directly affect your partner's sim run and then interupt their debrief to tell them what they are doing wrong.
7. Ask your instructors for an honest opinion of how you are progressing. Put in a complaint about them if they dare to suggest anything other than you are the greatest ATCO to grace the world ever.
8. The more thick-skinned and insenitive you can be towards others the better - especialy if they are struggling.
I hope this helps you. I can assure you they are all guaranteed to work.
Best of luck.