As a late teen and young adult, I was almost obsessed with the idea of finding more depth of life - a more fundamental satisfaction than accorded by the mundane social interactions, workplace and media that took-up so much of my existence.
It seems that many people experience this craving - yet, on investigation - there are few (or no) people who actually achieve the goal of a life of satisfying and sustained depth of gratification.
The most anybody realizes is living-in-depth, in an intermittent and partial fashion. For almost everybody, including great Saints and creative geniuses as well as the good and integrated people - the basic tenor of life is mundane.
Is that goal then impossible to achieve?
Is it then a 'waste' of time' - because unattainable - to reject superficiality and seek more depth?
Yes, sustained depth is impossible; but no, it is not a waste of time seeking it.
To attain this answer required several changes in the ultimate metaphysical assumptions of by teens and early adult life: I needed to acknowledge the reality of a personal and loving God, and that this was a creation in which I dwelt.
I also needed to acknowledge that this mortal life only makes sense (and satisfies) when it is regarded as an essential preparation - that is, a time for learning - before eternal resurrected and Heavenly life.
Once these were accepted, I could regard this mortal life as essentially spiritual in nature; and, as such, a series of potential 'lessons' or challenges' - problems or 'learning experiences' - some 'given' by providence, others by my own efforts (for ill, as well as for good).
Although success in learning from these life-experiences was typically partial, and always intermittent; in an eternal and resurrected context, it is worthwhile to live 'in search of depth' because dissatisfaction with the mundane and the merely-material is a good way of remaining open to the spiritual possibilities; so we don't miss them, and make the most of them.
A successful life is therefore possible, even when - considered in isolation - all mortal lives are a failure.