You need management experience. Hire some contractors/people to help you build something outside of work... learn how to manage them (make sure it's more than

You need management experience. Hire some contractors/people to help you build something outside of work... learn how to manage them (make sure it's more than one person). Even if its silly stuff like building web pages for local businesses. The next interview you take you will be able to speak about your experience managing a team. Oh and change jobs. You're clearly putting the work in and they aren't seeing it. That's a red flag for me. If you like the company you can land another gig and then have them counter offer with a management position.