Your cloud is familiar to you. The sunshine is not. You know how to act and feel in the cloud but not in the sunshine. Too many new and different feelings in the sunshine. The sunshine is as real as the cloud... they both pass, one into the other and back again.
The cloud is dark and opressive, no need to take action, you can't. Life in the sunshine requires action. It gets tiring to take action then the cloud becomes inviting. No need to take action. In the cloud all the emotion you need to feel is pain. In the sunshine, there is a rainbow of emotions to learn to deal with.
Anyone who cares for you will help you out of the cloud... but first, you need to let them know you are there and want help getting out.
Yes, you have a choice whether to go or stay. I will be the first to say "Please don't go! Stay among the living."
Your inner voice will tell you how to live in the sunshine. First, you need to fully feel it's warmth.

<font color=blue>This above all: To thine own self be true. --Shakespeare</font color=blue>
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.