What if I finally get my dream job but I then realize it’s something I don’t want to do for the rest of my life?

Nobody likes to be a slave n be bossed around at the end of the day so u wuddnt be wrong to feel so. That's true about everything in life though when do we ever settle for anything, if it's good we get bored and if it's bad we wudnt want it anyways. We don't even knw what we want or maybe we don't but our means are hopeless. And the real way to live life n get what we "really want" is something isn't taught to us and only a rare few seem to knw the drill.