Wow...My heart goes out to you. I know that pain about your ex-boyfriend. Yes, that hurts. Try to remove yourself from that and the thoughts of him. Do not keep in contact, that prolongs the pain. Your focus now must be on your job situation. Be grateful and thankful that you still live with your parents and they may be pressing you to find a job, but they are more than likely doing that for your well being and times are tough.
I also agree with the other posters. Take the CNA job, that will give you income. Congrats on graduating, but do not let pride get in the way of meeting your necessary needs now. The CNA position would just be temporary. Not permanent. Also another poster here gave you very good advice about keeping your degree quite, because yes coworkers can be very vicious.
Find the time to take care of you. I know you are under alot of pressure but once you adjust your focus and thinking there is some good that will come your way. I will definitely keep you uplifted in prayer and ask that God give you strength and guidance during this time.
Email me anytime!!