With your Journey statuses configured, it's very easy to create segments based on where in the funnel your leads are, since you can filter directly on the Journey status.
When you create your segment, add the Journey filter. It is available under both Contact filters (the contact's own Journey status) and Company filters (the Journey status of the contact's company).
A segment is a selection of contacts. To narrow down the contacts with a certain Journey status, add more filters, such as Sales or Marketing score under Company filters.