Hello dear, The symptoms of slowness in mentation/ thinking, easy irritability, emotional fluctuations/instability, and loss of trust/disappointment in people all seem to add upto a significant mental health disturbance. A mental health review to rule out depression, anxiety, adjustment disorder, or a medical disorder leading to current presentation needs to be carried out. Hence my suggestion for you is to seek a consultation with a psychiatrist near you for comprehensive assessment and management. The condition as per your description appears to be treatable and help can be provided to you once you seek the first step. Hope this helps you. Best wishes for your health and future... Regards..