"Fast" (as in fasting, not fast quick :D) Cure for Depression by Dr Bilal Philips of Islamic Online University. ~ In sha Allah it works when one wants it to, and do it (successfully) with Allah's Grace & Mercy & Help.
What if you started memorizing one verse a day 17 years ago? Also once someone gets a habit of memorization it often becomes much easier to memorize more per day than when you started. May Allah help all of us to memorize his book, ameen.