PLEASE do not stop taking your medicine cold-turkey. People who do that can sometimes experience extreme episodes of anxiety. With your doctor visit being so soon, I would recommend to wait until your appointment and speak with your doc about your concerns with Lexapro. The doc will probably ease you into a different med that they feel is better fitted for you. At the very least, call the doctor's office and tell them you cannot continue to take it for another 3 weeks, if it is really bothering you this badly. They will probably want you to come in sooner to change it out. Everyone's body responds different to medication, so sometimes it takes a while to find something that works for you. But, it will happen. Also, it seems as though anxiety is on the top of your mind always. I can't blame you, that's how life it for most of us here! However, if the anxiety is always lingering on your top-of-mind awareness, it is much more difficult for any remedy to work because you are still focused on your anxiety regardless. Does that make sense? Like with me, at my worst point in my anxiety, I would sometimes allow my mind to be free from anxiety for a brief moment and think about something normal, then I would realize I wasn't acknowledging my anxiety and I would immediately snap back and be like- Oh, wait, what was I thinking about earlier? Oh that's right- anxiety. It wasn't intentional, I didn't want to think about my anxiety, it had just become natural to me at that point. But, medicine and therapy will help this. You just need to find what's right for you. But, please, PLEASE don't just stop taking your meds without talking to a doctor.