Hello dear, The symptoms mentioned by you have at least two aspects to it- 1. Negative feelings nad emotional state for approximately two years , characterized by low mood, self critical thinking, ideas of being referred to , loneliness, etc. 2. Use of cannabis (weed) the pattern of consumption has not been elucidated by you here. However it has seemingly accentuated your feelings and also led to some unusual experiences. The above two may or may not be linked to one another. However what is amply clear is that you would require a detailed assessment of both. Thereafter a plan to help you can be drawn. In all likelihood you will require some medication and psychological intervention in combination. However please be well assured that your condition can be helped with proper guidance and treatment. Do not hesitate or delay in seeking help as delay can lead to complications. Hope this helps you. Best wishes for your health and future.