I came across the following quotation today and it gave me a much needed lift. May it do so for you as well:
No matter what looms ahead, if you can eat today, enjoy the sunlight today, mix good cheer with friends today, enjoy it and bless God for it. Do not look back on happiness -- or dream of it in the future. You are only sure of today; do not let yourself be cheated out of it.
-- Author Unknown