Congratulations! You have now installed CloudStack Management Server and the database it uses to persist system data.
What should you do next?
Even without adding any cloud infrastructure, you can run the UI to get a feel for what's offered and how you will interact with CloudStack on an ongoing basis. See Log In to the UI.
When you're ready, add the cloud infrastructure and try running some virtual machines on it, so you can watch how CloudStack manages the infrastructure. See Provision Your Cloud Infrastructure.