On today's discussion about authenticity—I don't think it takes any energy to be yourself. It's the most natural thing to do. After all, you are a human being. But there is a difference between being yourself and knowing yourself (which is a lifelong journey).
Avoid the 3 monsters: perfection monster (tells you it's not perfect yet, symptom is procrastination), advice monster (quick to prescribe w/o complete understanding of the problem), & the people pleaser monster (seeks the validation of others: parents, peers, professors).