I made such a mistake going into law. Before kids I was career driven and wanted to make it to the top in law. I loved my job, it took a lot to bother me. Having DCs was the best thing I ever did but it totally and irrevocably changed me. I am so much more sensitive, anxious and so much less resilient.
I am lucky in that I work remotely. The area I live means finding an alternative job that still pays well is difficult. I know there are options out there. I don't even know what else I would do in any case.
I feel flakey and useless. Like I can't hack it. I don't think it will ever change.