To access your Crown Convos, login to your account and visit your Dashboard. If you're not immediately taken to your dashboard, you can find it by clicking the gray person icon in the top right corner of your screen and selecting "My Dashboard" from the drop down menu.
Crown Convos will be the first option under your profile photo on mobile. On desktop, it will appear in the gray bar on the left side of your Dashboard.
To start your own convo, click "+ Crown Convo".