Yes, always water thoroughly after the top half-inch of soil has dried. That would probably be closer to weekly than daily.
Avocadoes normally grow a single, unbranched stem unless they are pruned or pinched. If yours is already too tall, then cut the stem back to your preferred height. Once it is at the preferred height, then use your fingertips to pinch out new top growth as it emerges. Be persistent in your pinching to encourage branching.