In third grade I was taking tap-dance lessons and about six weeks before the recital I wanted to quit. My mom said 'No you're going to stay with it.' Well I did it and I was bad too! But my parents never let their kids walk away from something because it was too hard.
I believe you'll develop speed via strength work which includes hill running either repeats or running hilly courses as the Kenyans do on a steady basis.
