What is the best technique for sawing brick with a circular saw and masonry blade? I'm not having much luck at it. Thank you.

If you are only doing a few bricks this is the way to go. Cutting lots of brick is better done with a wet saw. Nail 2 strips of furring down to a piece of plywood. The strips should be just far enough to allow you to place the brck between the strips, this will hold it in place while you cut half way through with the saw. Wear goggles, mask and hearing protection. Flip the brick and saw the other side and you are done.