It can be a slow and painful process, but its worth it. Keep in mind over 3,000 people applied the last time the assistant conductor position was advertised on the railroad's website. You go through several "hurdles" to get in. First, ya gotta get called for the test (and pass it.) If you pass, you're thrown into a pool of available applicants. When the time comes to start preparing a new class, a very thorough background check will be done on you. If you've sneezed in the past 20 years, and its been documented, they know about it
If the background and employment and credit history all check out good, thats usually grounds to bring you in for an interview. If you pass the interview and physical abilities test, you go into another pool of available applicants. When the next class rolls around, and they select you, you go see the railroad physician for a full physical, and voila, you're in training.
You kinda have to find a happy medium with employment.... If you call too much, they get cranky. Usually the first week of the month is a nice time to call and say "Hey there, I sure am interested in gettin a job with you guys, any word yet?"...This way your file is pulled up and atleast it keeps your name in their head.
Good luck