I lost my money. How do I get back to my old life before stress?

By mistake, I was very stupidly deceived and lost $16,000 (my income is about $2,700 per month). They deceived me by pretending to be the government and that a loan was issued in my name to sponsor terrorism, but in fact it was a bluff so that I would turn off my brain from fright, the scheme is very stupid, but I believed. I have a reverent attitude towards money, because it is very difficult for me physically, I have been saving this amount for about 6-8 months and at the moment I have lost it, depression has begun, the doctor prescribed tranquilizers to calm down, but I cannot drown out the feeling of resentment, I have not been able to eat properly for almost a week, it is either sweet or I eat very junk food, I sleep very poorly, my face is covered in pimples and bags under my eyes, I look like a dead man, I have no desire to do anything at all, can you tell me how to overcome this?