Strange effect of weed.Depersonalization?Depression?Anxiety?

I feel:
-Numb
-No Emotions
-Depressed
-Worried
-Like I can't enjoy anything I enjoyed anymore
-Like I'm here but a part of me is not
-Like I don't exist and that only my body exists
-Like I am not in my body but can somehow interact with the world
-Like everything is fake
-Like I have a barrier in my head that doesn't allow any emotions,concentration and my thoughts
-Like a hollow human being
-It's hard or even impossible to me to interact with my thoughts,the world,my emotions...
...
Also I find it hard to think,concentrate,feel,see,touch,study… and so on.

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I have been feeling like this for 9 weeks.I smoked weed around 5 times and the fifth time I started feeling this way.What is this?