I took three psychology courses in the last few years so pay no attention to anything I might say about that stuff.

(Continuing to talk to someone about your issues can't hurt.)
Continuing to ride something, somehow, someway is key.
In the best of circumstances, for most folks acclimating to a recumbent takes time and miles. Mastering a 'bent tandem is much more of a challenge. I still have some anxious moments on my single and tandem 'bents.

Keep riding.