3 questions

If for a moment, we assume that life as we know it, aims to maximize utility - i.e. which can perhaps be defined as the overall sense of well-being -

1. Is there a way to estimate the value of typically immeasurable intangibles such as "satisfaction" and "contentedness"?

2. Is there a formula to maximize the overall utility of tangibles and intangibles, such that some expected value can be estimated to determine the best course of action? Hence, e.g., one can choose the occupation that maximizes the sum of utility of job satisfaction + income earned? Even if this is in flux and changes with age, state of family and friends, and other internal and external factors, can we graph this?

3. Is there a way to better gauge what rational optimism is and what foolish hope is, and hence assign probability percentages to different paths, such that the decision tree can be completed?

And, why pose unanswerable questions?