I learned early on that one of the secrets to campus leadership was the simplest thing of all: speak to people coming down the sidewalk before they speak to you. I did that in college. I did it when I carried my papers. I would always look ahead and speak to the person coming toward me. If I knew them, I would call them by name, but even if I didn't I would still speak to them. Before long, I probably knew more students than anybody in the university, and they recognized me and considered me their friend.
Celebrate your success and find humor in your failures. Don't take yourself so seriously. Loosen up and everyone around you will loosen up. Have fun and always show enthusiasm. When all else fails, put on a costume and sing a silly song.
Swim upstream. Go the other way. Ignore the conventional wisdom. If everybody else is doing it one way, there's a good chance you can find your niche by going in exactly the opposite direction. But be prepared for a lot of folks to wave you down and tell you you're headed the wrong way. I guess in all my years, what I heard more often than anything was: a town of less than 50,000 population cannot support a discount store for very long.
I think I overcame every single one of my personal shortcomings by the sheer passion I brought to my work. I don't know if you're born with this kind of passion, or if you can learn it. But I do know you need it.