Sorry to hear about the second washout.

FWIW, one of my classmates at TSA took a CRJ transition course before reporting for EMB-145 training in STL. He told me that was a good decision on his part. But, it was something his flight school offered him since he was an employee.

Unless you return to PSA, and successfully complete the training, you will have a difficult time going forward in Part 121 or 135.