Bad trip on weed

So like 3 days ago i had a bad trip on weed, it was my 3rd or 4th time smoking and i smoked 3 blunts that day (not at the same time) i was so scared i was literally having depersonalization. Its been 3 days and i’m still shaky and panicking and crying everyday. I’ve never been scared of the dark and now i am in a way because whenever i walk in the dark i run back to my room, and I’ve never done that before the dark doesn’t scare me. I’ve been telling myself that i’m okay and i just can’t stop being anxious and shaky. why is this still happening, why am i still scared????