Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. I sincerely suggest that you are victim of your own negative thinking. You cannot term your current state of mind as clinical depression. Rather, this is just disappointment. Disappointment which arises out of unforeseen life events do bring such symptoms like sadness, irritation, anger, lethargy, lack of interest, lack of appetite etc. Regarding the problems induced by cannabis, should be ascertained clinically. But I strongly believe that, its effect after 2 years could be negligible. Please understand this fact and make sure to introspect. Find the reason for your disappointment and consult a psychologist if need be. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck.