The US Department of State publishes its opinion on the political and other conditions of almost every country. That includes such topics as corruption, the treatment of minorities, the judicial system, etc. If the circumstances described in your biography do not coincide with the opinion of the State. Department of conditions in your country, you have to work more to win your case. Be sure to consult a lawyer.
The role of a lawyer in such cases is to provide the client with resources relating to his case, for example, to find the right journalists or professors who can give professional testimony and assessment of your case in terms of the circumstances in the country and the credibility of your case.
Officers give a lot of attention to this kind of evidence. Usually, all the circumstances that emphasize the preparedness and professionalism of the lawyer have a positive effect on the officer’s attitude to the case. Else you could bear the stress of persecution in their home country. And it is logical that a psychologist can help you. In such cases, the lawyer advises using the official testimony of a psychologist for an interview. In some cases, the officers themselves asked for interviews if you turned to a psychologist after the stress you had.