I am on a low dose of Lexapro. I take the generic too. I find it helpful. Combined with psychotherapy, it has helped me control my anxiety.
I had some side effects during the first couple of weeks. I think that is pretty common. You might discuss with your doctor starting on a low dose and working up, if needed. That could help you get adjusted to the medication. My doc did tell me, though, that Lexapro is easier to adjust to than other SSRIs.
Best wishes, Medved*
* I am not a medical professional and nothing I say is medical advice.