Put yourself in a comfortable position that will allow you to concentrate and feel calm. Breathe in deeply, hold it, exhale completely. Repeat three times. Relax. Visualize yourself in God's presence.
Using Psalm 46:10, say slowly:
Be still and know that I am God
Be still and know that I am
Be still and know
Repeat a few times.
Relax and breathe in deeply, hold it and exhale completely.
You are trying your best just to be with God.