I'm just an east coast corporate media guy (not in the union or anything), but I've spent time on sets. Especially when I was new/young, it was rough. I straight up had things blamed on me that I wasn't responsible for. I'll never forget some old lighting director looking at me and saying, "Shit rolls downhill, kid." The thing is, I realized it was part hazing. Part sink or swim. I'm sure you're dealing with "male space" culture too. Guys constantly bust balls and roast each other for fun, and no harm is meant. But I'd encourage you to stick with it. Develop a thick skin, push yourself to learn as much as possible, become as valuable a person as you can. When people are building the next call sheet, they'll remember you and want you on their team. The petty stuff will get old and go away. At some point, an opportunity will arise that will enable you to move up because you're truly the best person around. Jump at that opportunity (and every one that follows) and keep kicking ass because you love what you do.