This is a prayer from Peter Adam's wonderful book on prayer called "Prayerfulness: Cultivating a Bible-enriched prayer life."  This particular prayer is a simple prayer for when your heart is brought low and you need to lament.

"Oh God, in all my days: have compassion on me.

When I am in danger: Father, have pity on me.
When I am depressed: Father, have pity on me.
When I am in despair: Father, have pity on me.
When I am full of doubts: Father, have pity on me.

When I am full of anxiety: Jesus, rescue me.
When I sick in body or mind: Jesus, rescue me.
When I feel you are far away: Jesus, resuce me.
When I feel all alone: Jesus, rescue me.                                                                     

When I am conflicted and confused: Spirit, comfort me.
When I am fragile and frail: Spirit, comfort me.
When I have no hope: Spirit, comfort me.
When I have wandered far from you: Spirit, comfort me.                                     

Oh God, in all my days: have compassion on me.