Don't forget about unemployment, either, I am sure you are avidly looking for a new job where the situation will be better for you. But in the meantime, do the unemployment appeal, keep making the certifications, and when you go to the hearing, keep it job related. You did get a job where you thought you were getting better hours, regular hours, you thought you were going to be treated in a professional and courteous manner, and it didn't work out.
You did find it necessary to quit the job, after making a good faith effort to make the situation work out, to resolve all the problems, so hopefully you may be able to get unemployment benefits for these weeks between when you felt forced to leave this position and when you find that next good position.
So many times, people try to win unemployment insurance hearings with personal and subjective reasons for quitting the job, but if you keep yours related to the job, to the unprofessional way this employer worked with you, you may be able to slant the info they get to a degree that you get approved. Good luck on this, and hopefully you will soon find something else that is better. There are a lot of employers out there who will not work with you in any sort of way, and these are the ones you need to leave for your own personal reasons, because your life would not have been as good if you had continued to work for these people. But keep it work related, and do appeal for benefits for these weeks. you have nothing to lose by pursuing the appeal. .