You regret that the Jesus Prayer is not unceasing, that you do not recite it constantly. But constant repetition is not required. What is required is a constant aliveness to God — an aliveness present when you talk, read, watch, or examine something. But since you are already practising the Jesus Prayer… in due course the prayer will widen its scope.
To pray: stand with your mind in your heart before God, always – St Theophan
The principal thing is to stand with the mind in the heart before God, and to go on standing before Him unceasingly day and night, until the end of life.
Do everything seeking the mercy of God and you will find reassurance – Archimandrite Vasileios
When you build in order to build, you are enlarging your tomb. When you write in order to write, you are weaving your shroud. But when you live and breathe seeking always the mercy of God, then an incorruptible garment is woven around you, and you find the sweetness of a heavenly reassurance welling up within you.