Here is an anecdote about our role as individuals from a talk held by a prominent Bahá'í recently:
No development and spiritual transformation can take place without our emotions being stirred, and no achievements can be accomplished without sacrifice. The goal ahead of us is, to
1) prepare ourselves spiritually
2) do what is our own unique part with a pure motive
3) ask the Concourse on High for guidance and leave the rest to the Almighty
4) prepare ourselves to receive the answer when it comes.
Also be aware that time is short.
Try to make some time so that you can do more of the things that make your heart leap in your chest with the feeling of being part of something BIG - something much bigger than both little you and I, and six billion other souls can comprehend.
If it doesn't come to anything, you can safely suppose that it was not meant to be and perhaps does not fit into God's Greater Plan.
In general, what will benefit us most is to center our energies in whatever concerns the well-being of mankind.
(Some relevant passages from the writings:)
"Let your vision be world-embracing, rather than confined to your own self."
Bahá’u’lláh, Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas, p. 87
"Forget your own selves, and turn your eyes towards your neighbor. Bend your energies to whatever may foster the education of men."
Bahá’u’lláh, Gleanings, p. 9