I'm 16 and I have a generalized anxiety disorder, so my doctor proscribed me Lexapro 5MG for a week and I took 5MG for 4 days, and my anxiety has been a little better, but now I feel like I'm not in control of my body, like I always question after every action I do, kind of like I'm watching somebody else's life. So then I started taking 10MG without my doctors permission for 3 days and I'm still having the same problems. Is this "depersonalization" or "derealization" part of anxiety or and I'm stuck like this permanently? I feel like this as soon as I wake up. Will Lexapro help this as this the only thing really making me uncomfortable. Or am I loosing my mind?

Thank you.