So I'm in my second semester Junior year, applying for medical schools in two months. I led a study from freshman year first semester lasting maybe 20 hours total. I've played soccer my whole life and have been the captain/organizer of an intramural team every semester and one summer since my freshman year. I have also been mentoring a freshman who works at my lab doing research. Next year I plan on being a biology undergrad TA and a board member of the pre-med club that I have been in for the past 3 years. None of my current leadership activities seem very substantial. Am I wrong? And will next year's commitments be enough to give me at least average leadership experience if I don't get accepted this year?