Shaikh Moulana Muhammad Zakariyya (Allah have mercy on him) once advised a person:
In order for you to acquire focus and remain composed at all times, it will be necessary for you to make a timetable, allocating time for each responsibility. Thereafter, if you adhere strictly to your timetable, you will be able to easily complete all your various works with complete ease and undivided attention. Over time, working in this manner will become your second nature.
(Qutbul Aqtaab Hazrat Sheikhul Hadith Moulana Muhammad Zakariyya (rahmatullahi ‘alaih) pg. 387)