Always remember that spirituality can easily be lost – climbing is difficult but falling is easy. Consolidate what you have i.e. fardh and sunnah acts of ibadah and take things slowly, with patience and perseverance.
A reminder from an old post that we naturally deteriorate in spirituality over time and we most strive to arrest that natural decline. http://www.contentsoul.com/2010/08/05/spiritual-deterioration/
Contentment is when you are at peace within and with everything and everyone around you, even though you may be afflicted with misfortune and trials. The most contentment you will feel (even more than through dhikr) is through the recitation of the Qurʾān.