What are the benefits of fasting?
https://www.saintsofyahawah.org/health-wellness-and-survival-1/health-benefits-of-fasting
Tobit 12:8 Prayer is good with fasting and alms and righteousness. A little with righteousness is better than much with unrighteousness. It is better to give alms than to lay up gold:
Prayers to help stay in the spirit and endure when fasting:-
Psalm 17
Psalm 19
Psalm 23
Psalm 25
Psalm 31
Psalm 32
Psalm 38
Psalm 51
Psalm 73
Psalm 91
Psalm 92
Psalm 138
Psalm 139