The company often tries to get FNGs to do things that are in clear violation of the CBA, precisely because you don't know it yet, so knowing the CBA can often prevent the abuse and thus make your life easier. (The CBAG is a lot easier to digest, BTW) Start with the easy stuff - in recent months, I've had DHs scheduled over 20 hours (with an illegally short international connection time), airport hotels for long layovers, insufficient/no catering for a 10+ hour flight. Lately they've been trying the "you need a backup flight for Gateway travel" nonsense. Know your reserve window/layover callout times, they've tried to get guys to show up early to cover their mistakes. Talk to your fellow crews/new-hire classmates - spread the word when they try to pull something on you or you realized you've be suckered. Write FCRs when they do try to pull stuff and copy the union. Always remember that it only takes one crewmember to stop a flight, no matter how new you are. No/not enough catering for a long haul? Don't go! Would you push with less than min fuel? Get to know the requirements for an adequate hotel room, or how long the company has to resolve hotel/taxi issues. Know how to contact the stewards when you have a question. You get the idea.

We have a contract study committee, looking for input on what we want fixed in the next contract. Let them know what you want and talk with your crews about it as well. No airline is perfect, but we can certainly try to make it better.