So I started dissociating and being paranoid only after a bad trip induced by marijuana in the beginning of this year and I had this phase of panic attacks with anxiety of feeling depersonalised and unreal. This lasted for about a month and then I didn't get this feeling till now which is for 6-7 months . Does anyone get this in phases? And this time it isn't as bad as earlier because I'm aware of what's happening to me but I'm still unable to convince my brain. It's a huge fight between myself and my brain like two different people are at a fight which is draining me out. I'm constantly anxious and this has led to oversleeping. 
If anyone has felt this way or had a  similar experience, let me know what helped.