For a long time, I used a balanced scorecard, or multi-criteria decision-making (MCDM), approach to making this kind of choice. For this, you decide on a set of criteria to rate each opportunity – it might be how easy it will be, how much time it will take, how exciting it is – and then apply a weighting to each, depending how important it is to you. Then you score each opportunity against the criteria, multiply the scores by the weights, and add them all up to arrive at a rating for each opportunity (see the example below for a clearer picture of how it works).

And then you focus on the opportunities with the highest ratings.

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