To create a project from a blueprint, just fill out all the questions in order.
If your organization makes use of Git, consider adding a Git Account to your profile. This will let FlexDeploy populate a list of repositories that are available to you, which you may want to consider using to source your project files.
Otherwise, click other repositories to show repositories without looking for them in your organizations Git repos.
Finally, click confirm, and your project will be created and attached to a new or existing workflow and topology to drive it.