I'm taking Lexapro and I am still depressed.?

I understand that meds can't take away all of life's problems or magically make me happy with myself, but I am unclear on what Lexapro is suppose to do for me. I don't cry myself to sleep or during "sad" commercials anymore, but my motivation is still gone (even to satisfy sexual urges that I do still have). suicidal thought are still there, although i do think about it with indifference rather than conviction now. I just find myself still generally unhappy. If I had any motivation, I would get out of bed when I didn't HAVE to and do all the things they tell you to do in addition to taking the drugs like exercise and meditate etc. etc. but i need help getting out of bed first. after 5 months of 10 mg of Lexapro shouldn't I be further out of the tunnel than I am?