Peter's advice is sound. One of the things about the sport of fly
fishing(that some of us find appealing) is that it involves an ongoing
learning process. One not only has to learn about food items(bugs, and much
more), but about fish feeding patterns. Sometimes, what seems to be frantic
surface feeding is actually going on right UNDER the surface, requiring the
fly to presented at that level. Hold off on the tackle sale, and give the
sport some patience.
Believe me, we've all been to the place you were in today.
Tom