Some dancers never quite move out of this stage, instead treating it as a mark of skill to show off everything they can do each and every time they are on stage. There are lots of factors that have encouraged this in the dance world, but it is partially to do with the change in audiences. Native audiences and dancers are usually looking for a feeling: to experience tarab, or to feel connected to their culture or their community. The roll of the professional bellydancer as hostess and of a hafla as a social occasion is one part of why we want to avoid over dancing. But it also allows us to relax and enjoy our own dancing, and makes the performance that much more captivating for the audience.
Bahia, of Austin Bellydance, explains a lovely way of thinking about this in her Combinography DVD:
She explains that your dance is a poem, not as an encyclopedia. Check out this video of Esmeralda performing a drum solo, her stillness creates contrast and makes the moves she does perform that much more dramatic.
After you have been dancing while, maybe performing full length sets, maybe just having been in a bunch of showcases, you learn that you can do just one thing at a time and start to feel like you have more time to say it. And because you already said a lot of things in previous performances or practices you can focus on going more deeply into one thing.
Another way, or a way to help you feel comfortable with doing less sooner in your dance journey, is to use music mapping. It lets your look ahead in your piece and ration out your artistic choices ahead of time, before the panic of performing, and the distorted sense of time that comes with it, tricks you into thinking you haven't done enough to hold the audience.
I recommend, especially if Egyptian style is your thing, to start with practicing beledi style progressions. Not only is the earthiness of it helpful for your technique, but the music's structure comes pre-mapped. Ranya Renee has an excellent DVD set about it, and you'll notice how the progression gradually builds over several distinct sections, each with certain steps or energies traditionally associated with them.