A hermit is a common indication of distance, isolation and solitude. To dream about being a hermit means that you're experiencing those feelings and that they are starting to affect your life.
Living in a cocoon or hiding yourself in the sand can never be a solution to any problem. You might be so used to this approach that you opt to completely abandon important situations and people.
Try to think things over - speak to a friend or someone you trust. Don't isolate yourself, or else it might be too late to turn back and resolve an issue.