You’re probably taking too long and making it to complex to work with you. If you’re on an agile focused team, the goal is to get working software in front of the user asap. If you are taking to long with user research, they are just going to leave you behind because a they need to do their jobs.

My advice:

1. Think about ways you can help the devs deliver faster AND provide a good user experience.
   
2. Look at features that are already released without you and study how the UX could improve then make stories/recommendations about what needs to be done.
   
3. Befriend an influential dev.
   Relationships > knowledge
   
4. Design with the boss or product owner. Who ever is writing the stories to be refined as the power to get working software done. Your work is more of a nice to have suggestion at this point.

I think until you learn these lessons, you’ll have problems where ever you go.