How to pray when you're depressed. I found this in some resources. Hope it helps.
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Find a Quiet Place

Put on some soothing music. Keep it soft and gentle. Take a few deep breaths, holding each one for a few seconds and then slowly exhaling. Relax. Feel the chair you're sitting on, your feet on the floor. Smell the scents in the room. Imagine His love coming toward you. Tell him how you are feeling right now: anxious, uncomfortable, fidgety, distracted, wanting to focus. Tell him what things are like for you today. Open your heart to him. Feel his presence very close to you. Let his love into your heart. Thank him for this gift.
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Go for a Walk

Take some pleasant music with you. As you go, notice the sky, feel the season. Recognize what is around you. Feel at home right now. Offer your heart to God, even if your pain is deep. Though you may be alone on your walk, God is in your heart. Tell him what you see...the beauty around you. Tell him how you feel...even if it is dark. Remember he wants you to tell him everything in your life...joys and pains.

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Remember Others Who Are Hurting

Call to mind someone else you know who is hurting or sick. Focus for a few minutes on what that person may be feeling, and on what you would like to say to him or her. Lift this person up by name to God and ask his blessing on them.

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Hold On to God's Word

If you're feeling low, go to a quiet place and hold His Word. Read or focus on a phrase of it. Embrace how you feel, even if it's uncomfortable. Know that God is loving you through these moments of darkness.

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Open Yourself to God

When you are unable to focus because your mind is racing, try to remember and pray the words, "My God, I love you." Open yourself to God's love.

<font color="black">[b] For those who use the term "pray" but do not focus on one higher power, adapt the above for your beliefs, such as "Open yourself up to the Universe."