First day on 4chan?
Maybe lurk for a few days and get a feel for how the site operates, the rules for different boards. /wg/, for example, has never been a blue board.
Don't know what a "blue board" is, do you? Here's a pro-hint: /wg/ isn't one of them. If you're mommy doesn't want you on NSFW websites, get out. There's a whole big part of t3h Internets you can visit that isn't 4chan, including a magical safe place called "reddit" where moralfags and SJWs circlejerk each other around the clock.
If you're under 18, see pic related.
If you're surfing 4chan while at work, you deserve exactly whatever happens with your employer. Even blue boards get adult pics posted, and they don't always get cleaned up or cleaned fast. Nobody cares. If you do, 4chan really isn't a community where you're going to get along and you might consider other options.