I empathise with how you’re feeling right now - having spent a huge sum on getting your CPL, with little or no prospect of employment upon completion of the course. I have been in your shoes before, spending a huge fortune only to end up in a period of financial crisis with no opportunities for employment.
I am sure you (and most people) would have considered the possibility of not being able to find jobs after getting the licence before starting the course, but it hits real hard and it is a hard slap in the face when you’re truly in this situation facing reality. I had to go through a long period working in other jobs and the wait for a flying job without certainty was frankly, hard to deal with.
No one could foresee this pandemic coming, you’ve made the decision there and then with the best information you had. It’s not a mistake.
Do not give up.