How do you use the word morass in a sentence?

1. My car got stuck in a _morass_ of mud after the heavy rains.

2. The peace negotiations had become bogged down in a _morass_ of complications.

3. She found herself trapped in a _morass_ of depression and self-doubt.

4. The company's financial situation was a _morass_ that no one could decipher.

5. Our plans were mired in a _morass_ of obstacles and delays.