Hello Friend, Good that you are seeking a help. I am sure you must be on  some medication in past and due to side effects would have dropped the treatment. To get complete cure from any psychic treatments, in addition to medicine you also need to follow few behavior therapies, dietary changes, excersise etc So better take a holistic approach in your treatment plan.

Feeling low, having crying spells, sleep and appetite disturbances, and difficulty in concentration and attention are some of the signs of Depression. Consult a Psychiatrist for a detailed assessment. It is likely with medication and counseling the symptoms will improve. If you are feeling suicidal or hopeless consult a Psychiatrist immediately.