Hello dear,
The description provided by you here is quite brief to understand and respond to your problems and situation. However it seems that you are suffering from chronic depression or dysthymia. In such a scenario a detailed assessment including your medical history like
thyroid, anemia etc, psychological interview, and an understanding of your social scenario would be required. Thereafter based on the assessment factors a management plan can be formulated to help you. Please be well assured that your condition can be helped with proper guidance and treatment. Generally a combination of mediation and psychotherapy is well suited to problems of the nature that you have described here.
Hope this helps you. Best wishes for your health and future..