If you've been identified for a leader's role, means your work hasn't gone unnoticed and they obviously deem you fit for responsibilities that come with it. To be picked above the more experienced/older folks is compliment to your abilities. Though i understand your apprehension, your approach should be of optimism and be welcoming of additional/newer responsibilties, the bigger the better. It not only elevates you status, but presents itself with situations that brings to the fore character/qualities that you normally thought didn't exist, promote self-development, and doubles the potential for greatness. It can be an enriching journey.
A leader leads by example. He does so through his own work. Excellence commands respect and admiration (regardless of individual differences). If you can sustain the highest level and remain steadfast to the purpose at hand, you'll be a source of inspiration for those around you.
Having said that, I don't think you can really prepare a leader in theory. Leaders are born in the face of adversity, hardships and such defining moments. I believe we all 've similar potential, only we decide what and how much to take from it, while seizing opportunities along the way. All of which 'll go on to dictate our eventual greatness.
Not sure how much of the above has helped. But I wish you the very best, Captain Aasim.
