Go to Sally's Beauty Supply if you have on in the area and purchase a pair of thinnning shears. These should cost you less than $10 and are basically scissors, but one arm appears to have 'teeth'. Essentially, this allows you to easily thin your hair and come closer to acheiving your desired look at home. I would first try going to the salon, however, to properly set your expectations of what is possible with your hair type.
I don't have the style you're looking for (then again I'm 30), but I've been cutting my own hair with a combination of clippers and thinning shears for years now.
I don't have the style you're looking for (then again I'm 30), but I've been cutting my own hair with a combination of clippers and thinning shears for years now.










