Suggest Treatment For Severe Depression

I will be 63 in September of this year. I have been married for 20 years now. I went through a hysterectomy when I was about 47. I seem to have lost all my ambition and motivation to do anything. I had to begin taking Lexapro about 10 years ago. I thought I was losing my mind. All I could seem to do was cry. I cnnot concentrate very long on anything without my mind jumping to something else, but I cannot see to actually get up and do whatever I was thinking about needing to do. I have gained about 60 lbs since I got married and now feel like an utter slob. I work so much(10 hrs a day) and when I come home, I am really tired and do not feeling like doing anything. What can I do to get out of this depressing slump?