Wife wants to relocate to Germany to be closer to family. I don't speak the language. Am I sunk?

Hallo. My wife and I currently live in New Zealand with our 4yr old son. Neither of us have family here, but have decent jobs, house etc. she would like to move to Germany to be closer to family, especially for my son to know his family. I totally support this idea. However, I'm a 50yr old white dude tertiary tutor with no real German language skills, but am trying. I just find it difficult. I can grasp basic conversation, but there's no way I can compete for jobs with locals. I just worry I might be throwing my career away and may feel isolated, etc. If anyone has any similar experiences or advice I'd welcome any input or suggestions to make things work. Vielen dank.