I am sorry to hear that this has happened
You've had a pretty horrific experience to say the least.
The fact that you've managed to stay in the same industry speaks volumes for your dedication and commitment to your field of work.
We all have different learning skills and some things we are not so able to grasp as others.
To this end I'm sorry that it was technology that drove you out. Unforuntately we're living in a highly competative global world and technology is one of the driving forces behind this.
I would suggest - there are certain NFP organisations that do run free computer literacy courses .... it might be worthwhile seeing if you can sign up for one.
If you industry is highly reliant on technology, you might have to consider, temporarily, changing to a different line of work, and whilst you do this, you can work on your IT skills at the same time.
However this turns out, here's wishing you best of luck moving forward.
Please let us know how you go.