Dissociation during Ativan (Lorazepam) withdrawal

I took 0.5 mg of ativan (lorazepam) almost daily for 3 weeks. I stopped 3 weeks ago and sometimes I have had difficulty breathing, a lot of dizziness and dissociation/DPDR. It feels like I'm observing my life from the outside and I don't feel like I'm in control of my own actions. Also, my vision is kind of weird, I don't know, like hazy and sensitive to light. It's hard to explain, but I'm sure people who have experienced this symptom know what I'm talking about. I know that everyone reacts differently, but please, can someone who has had this symptom tell me their story and how long I will feel like this? I’m 18yo if that’s important.