Hi Anupam Mohole,
Thank you for reaching out to us on the Microsoft Q&A forum.
Once you launch the lab, you can follow the instructions on the right side. Please refer to the screenshot below.
Navigating to Your Workspace: To access your workspace, open Power BI Service and select "My Workspace" from the left navigation pane, where your reports and dashboards are stored.
Account for Creating Workspace: Use your organizational account (work or school) linked to your Power BI license to create and manage workspaces.
Pinning Dashboard Visuals Issue: If the pin icon isn't visible, check your permissions for pinning visuals. If you're unable to pin, use the ellipsis (three dots) menu for alternative options, and ensure your report permissions allow it.
If you are still facing any issues, please let us know in the comments along with a screenshot of where you're encountering the error. We’d be glad to help you further.
If this information is helpful, please Accept Answer and Upvote so that it can benefit other community members.
Thank you.