I would suggest relaxing while you crochet. When I first started, I was always very tense and held the needle too night. Also, nexstitch.com has some great videos.
Another thing is that finding a pattern that uses double crochet usually ends up with less-pointy results because it is a more open stitch. http://www.yarncat.com/MFH-Helene.html
This type of may not be the specific style you are going for, but the basic crown that she uses for all her hats is a double crochet style that turns out wonderfully. I used to just use her crown, and then double crochet all the way down to make a simple beanie.
Hope that all helps!