This is a bit silly.

[SouthernBelle]

Interestingly, I have to look when I get stuck. Make sure you are warm, it seems to make the veins easier to hit.

From one who has little rolly veins,

[Zen]

You are to be commended for donating a much needed commodity.

Before I became too sick for it I was a frequent donor. I've been stuck so many times it just doesn't phase me anymore. Actually I figure if I'm watching they'll be more careful.
Maybe you could get a sewing needle and poke yourself a few times just to get used to the sensation.

I'm probably not the best person to get advice from.