As I posted above, German public insurance is required to cover therapy if your GP prescribes it. So you can get private therapy covered if public therapists are too busy to take you.

The process is roughly like this:

* GP prescribes therapy.

* You call seven public therapists who are busy and note their information and when you called. There's a specific form for this.

* You find a private therapist that satisfies certain conditions (e.g. degree granted in Germany) that is a good fit for you, and your public insurance is obligated to pay for your care.

Here's a long guide on it:

https://www.bptk.de/wp-content/uploads/2019/09/2019-09_bptk_...