In theories of computation there are two broad categories of model: deterministic and non-deterministic. Deterministic models make choices based on inputs; a simple example, the input is two and therefore the model moves to state two. The next input would be three, which would then perhaps mean that the model outputs the letter "p" and then stops. On the other hand, a non-deterministic model would make no such choice. The model splits into more than one reality whereby it takes all possible choices simultaneously; that is, steps toward all possible states simultaneously. It continues this until all possible outputs/end states are reached.I am 100% in favour of this sort of strategy. If you are ever feeling just a touch blue for example, may I recommend spending a day in which you address everyone you meet as Elvis, that never fails to cheer me up.
In my mind, finding a passion (taking one route) is a lot like the deterministic model; but I would suggest trying the non-deterministic approach. Write down all goals you might like to achieve or simply have to complete, both big and small, from "kick my smoking habit" to "finish my homework" to "write the short film script I have wondering around my brain", and then just go about your day as usual. If everything you could ever possibly want to achieve is in that list, then you are always working towards your goals.
For a deeper funk, I prescribe a day of believing in everything by sheer willpower. Going to work in a world where there is gold at the end of the rainbow, and every chance of courtly love, dragons, chivalry, magic, and trolls at lunchtime can never be dull.