When you begin your day, often you know that there will be sufferings to endure. This can make it difficult to get out of bed, but when we unite those sufferings to God, it can make it much easier.
Here is a prayer from The Catholic prayer book and manual of meditations that can be used in the morning.
To you, my God, I offer all that I shall do,
all that I may suffer during the day which is now begun.
I unite all my actions and sufferings to the sufferings of Jesus and Mary.