Bullion stitch looks very decorative and attractive, but certainly requires a lot of practice. It can be used like an edging or for crocheting very decorative elements and flowers. Using this stitch, you can create a crocheted fabric which structure looks very unusual for the crochet work. No wonder free form artists like it so much!
Roll stitch is another a well-known name for this stitch. It is formed by wrapping the yarn a few times around the hook, and than pooling the yarn through all those wraps together. These is where all those troubles come from. -:)
Most likely you won't be able to make it look great from the
beginning, but as usually, it will get better with practice. It can be
done both around the circle and in the row. (See the picture below).
Here are a few practical advises, to make your learning curve easier.
Let analyze what should be done, to make your bullion stitch works. As the first step, you form a "coil" around the hook. On the second step, you have to manage to pool the yarn through that coil.
To make it happen:
How to provide conditions, which are listed above?
Here are a little bit different ways of making the stitch. The hardest thing in making this kind of stitches is to pool the hook through the set of loops on the hook. Not every kind of hook and yarn will let you do it easily. Apparently there are the solutions to this problem. Watch these videos. I suspect they will help you a lot to crochet this challenging crochet stitch.
This technique is completely different. You do not have to pull the yarn through all those stubborn wraps on the hook. Move them one at a time.
A video is in Russian, but the presentation is very clear. To make the internal diameter of the "coil" bigger, use a big needle. Once all wraps are on place, move the needle to cover the tip of the crochet hook. This way you isolate the crochet hook from getting stuck in the "coil".