Peace to you all,
Sidi Muhiyyidden Ibn Arabi, may Allah be Merciful to him, identified and/or narrated four (4) types of Saum/Fasting, as did most ascetics. These are:--

1) The fast of the layman, and that is abstaining from food, drink and sex.

2) The fast of the chosen among the laymen, and that is by avoiding all forbidden actions and statements.

3) The fast of the chosen people, and that is to abstain form everything, but the Remembrance [Zikr] and Worship of Allah, Subhanahu Wa Ta'ala.

4) The special fast of the chosen people, and that is to fast from anything other than Allah, and there is no breaking of this fast until the Day of Resurrection.

One may evaluate and see on which type/level of fasting is he/she... aim to be on the 3rd or 4th type, with the Help and Assistance of Allah, Azzah Wa Jallah.