You appear to be in a very severe depression, that is beyond your own unassisted ability to cope with. It's time to seek professional help. Make an appointment with someone right now. If you don't have insurance and can't afford it. You can apply for Medicaid, but in the mean time, you can go to the hospital emergency room for help. BY LAW they have to help you even if you can't pay. They can make arrangements for you to pay on installments, or they can bill you later, so you can pay later after applying for Medicaid coverage, or to get financial assistance for medical bills from some charitable organization. Also, some hospitals have their own charity care plans. In the meantime they can start treating you right away, because the law says they can't refuse to treat someone in need just because that person can't pay.
It's a fact of life that not everybody is nice, and that sometimes people present themselves falsely as nice, when in fact they aren't nice. Apparently you ran into someone like that. We all run into people like that at times, but most people are okay, and some are really nice. You need time to get over the hurt that was done to you, but in the mean time get some help, NOW.
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau