hmm, personally, i don't believe in persistance for chasing girls. actually, i don't belive in chasing girls. once i got my shyt togetherm, the two hottest girls at my school came to me. so i would say that i believe in persistance to change and improve oneself, but not in chasing girls because that leads to desperation.
SOOO, get your shyt together, and let the honeys roll on in.
btw, i don't want to get flamed for this so my defense is only that my personal experience has offered me exactly such.