There are moments in your life when you wonder "What on earth did I gain from that experience?". At these moments, it's almost always best to simply sit still for awhile and reflect. You don't have to dwell on whatever the experience has been; although you already know it wasn't an enjoyable one. Pray or meditate and reflect on your role in the situation...what you did or didn't do to affect the situation and outcome. Try to see things as clearly as possible, accepting full responsibility for your actions. Forgive others involved and forgive yourself.
Forgiveness may take time if you've been hurt or if you're grieving. Likewise, your emotions can cloud your ability to see things clearly; therefore not allowing you to truly understand your role in a situation. If this is the case, don't rush...growth takes time. When the picture is clear and forgiveness has taken place, then you must face what remains. Whether it's residual feelings, mental/emotional/physical scars, or tangible items...there is always a lesson to be learned.
Regardless of what you can add to the list, the lesson which remains is the most valuable good from any situation you experience. The lesson usually takes the longest to learn because you must first forgive and understand your role. When you find, understand, and internalize that which remains (your lesson), move forward with purpose in each step. Celebrate what remains as a part of life that has made you smarter, wiser, stronger...better.
It's beautiful to be you...simply beautiful.