My question more specifically is, do we have any control over where we end up? Like if we end up in a dead end job or or 'living the dream'. Do we have control over who we become and if so how much is just up to random chance?
Of course we do. Comes down to social injustice, though, doesn't it? I mean, those from high-income families are statistically more likely to be able to attend university, get a "better" job, etcetera. Having said that, there isn't too much stopping people from low-income families attending university (I'm using this as one example) if they have the willingness to get up there.
Less to do with trivial events and more to do with the things we value like who we fall in love with, what we spend our lives trying to achieve (I could say occupation but most of the time a persons real passion isn't how they make money, the tragic events we experience and how we change as a result of them and, our attitudes towards people and our relationships with them.
Huh - we can talk ourselves into anything - our own willpower is astounding. We can talk ourselves into (or out of, if we're accomplished) pain, nausea, mental blocks, and even "who we fall in love with".
What do you mean by 'what we spend our lives trying to achieve'?
As for changing in the face of tragic events, obviously we don't have too much control over the tragic event itself, but we do over how we deal with it, what we take from it and what we ignore.