I need a clear and concise tech writer to create a step-by-step guide on how to use a new mobile app. The app allows users to track their daily habits and receive personalized recommendations for improvement. I've outlined the basic steps below: "1. Download and install the app from the App Store/Google Play. 2. Create an account and set up your profile. 3. Start tracking your habits and activities." Please expand on these steps, provide screenshots and explanations, and offer any additional tips or best practices for getting the most out of the app.