This right here.

Workplaces always talk about being families. And it's an easy con to fall into since you spend so much of your waking hours at work.

The truth is, most people work at at-will jobs. At your company's will, they will terminate you without two weeks notice.

When given an option to choose you or themselves, your coworkers will always choose themselves to win even if that requires throwing you under the bus.

Never tell anyone your next move. Move in silence. Let people be amazed with your results and achievements.

Also, for the love of god, do not friend coworkers on social media. Whatever they see you post (and previously post) will be used against you, if it gains an advantage for them.