Lithium takes at least 6months untill you can feel a difference. Also the level of it in your blood will tell a lot. I thought I might as well have been eating candy untill my level was right for me. I continued to take my depression meds untill I was on lithium 1year and my level was 1.0 then I was weaned off lexapro and feel fine with just lithium. My advice is hang in there and just take it a day at a time. In my experience lithium has helped me immensley but I had to give it time.