There are always amazing opportunities to triumph over failure or a tragic event. Some people allow those events to break them and defeat their sense of purpose. Others rise to the challenge and live through the incident. It is what you make of a negative life issue that will foretell how you will handle life afterwards. If you have had success triumphing over a tragedy and want to share your story, then you may want to look into life coach training, to be a motivational speaker for others.
You should know that life coach training is not standardized. There really is not an officially recognized program that offers a degree in leadership mentoring or something of the like. You can find certificate programs that can give you guidance in the field, by teaching you how to interact with others and to provide help in the areas that a person needs help, but you have to have the need to help others and be able to provide solid, life building techniques based on your own experiences.
There are some organizations that you can belong to if you want to join them and there are always classes in psychology, sociology and therapy that can help you gain the necessary skills that you will need to help motivate other people. Some of these organizations are: the International Coaching Council, the International Association of Coaching and the European Coaching Institute. You can also take courses online that may be able to help you with your training.
Anyone can become a mentor, a "coach for life" or a motivational speaker. If that is your goal, then to be successful at providing effective coaching you must have some sort of positive effect on other people. You would not want to stand in front of a crowd, become flustered and unable to continue.
Even worse is not having a positive message to influence others. You should be able to address a crowd successfully and know how to speak in public. Those are two valuable tools that a motivational speaker must have.
Chances are probably high that you will not find a leadership mentoring program or a coach training course close to you. Use a combination of online courses through the above organizations and also think about taking some college classes in psychology, public speaking and sociology.
They most certainly cannot hurt and will help you to become more comfortable when speaking in a group mentoring situation. Your job is to provide motivation and to lead other people through example so stick by your words and you will do fine.