In the book, The 4 Habits of Joy-Filled People, they address pain:

Let’s be real. It’s no fun to stay stuck in unpleasant emotions with no path back to joy. Returning to joy and peace means making the shift from the back of our brain where we isolate ourselves when things go wrong to the front of our brains where our relational self resides.
~ p. 106

From the Joyful Journey book:
When pain has been fully processed the experience usually produces wisdom. What caused us pain was not always a good thing, but a full resolution brings good from everything. This is redemption. If we allow God to take us through a proper pain-processing sequence, we develop deeper compassion and empathy. Moreover, those who courageously allow this process to bear fruit ultimately find they love God and others more deeply.
~ page 27, Joyful Journey, Wilder, Kang, Loppnow, Loppnow

Session A: We continue revisiting joyful memories recorded on your Golden Moments list. Look for God’s presence in the joys. Invite Him to share thoughts about joys you’re recalling. Again, notice body sensations, attitudes, heart rate, etc.

Session B: Thought Rhyming as Immanuel Journaling:
Take one or two of your joys from today (or your list) and envision God responding with one or two sentence “thoughts” in the following areas: I see, hear you, understand you, am glad to be with you, and can do something about your situation.

You have likely experienced the following description yourself: Immature people often change their personality depending on the emotion they feel. Others tend to walk around them on eggshells because of it. One of the characteristics of adult-level maturity is the ability to act like ourselves even under stress. The world needs more adults. We need more people who are running on the fuel of joy and handling their emotions with predictable stability.
~ page 125, The 4 Habits, Warner, Coursey

From the Joyful Journey book:
Suffering well means that we go through difficulties in life without being traumatized and that we respond to each situation relationally. We were created as relational beings, but we forget that when reacting out of pain. In order to suffer well, we need maturity. All Christians are called to develop maturity. One of the main characteristics of a mature person is the ability to handle difficult emotions. Mature people are able to return to a state of calm from the six big emotions. Maturity rises to life's challenges rather than reacting from fear. Maturity allows us to live according to God's values, remembering that we are created in his image to do good works. Although life is not easy, we can still live by our values during challenging times.

Session C: Reflecting with Interactive Gratitude:
Spend five minutes reflecting on the day or week. 

From the Joyful Journey book:
Trauma hinders maturity and can blind us to who we really are. Many of us have experienced times when pain rather than our Christian values has determined how we act. When suffering well, we remain the same. Living by God's values, whether in pain or in joy, we have metabolized (digested appropriately) our pain and can remain integrated. Christians are to be known as a group of people who "suffer well."
~ page 27, Joyful Journey, Wilder, Kang, Loppnow, Loppnow