Lexapro can vary in how long it takes to help. You are on very low dose. I seldom see any results at less than 20mg. Often had less side effects than Zoloft. If you are not having problems, 20 mg may be worth a try. Side effects, if any, usually only last a couple weeks. You may also have to decide between sweating and misery.
Which drug is better for anxiety zoloft or lexapro in your mind?
Dosing of zoloft for me at 125mg stopped working, Maybe I should have stayed on and upped dose?