It's difficult for anyone to feel what exactly you are going through, life do bring situation of crises in everybody's life. 2 things I would like you to know:
1. There is never anything in our life without a reason, sometimes consciously we are not able to find the root cause to these massive crisis situation, but universe work on principle of give and take. This life is an opportunity for you to find that root cause and heal it.
2. Universe/Creator/God never put you into anything that you cannot go through. You can go through this situation.
Next Steps
I will recommend seeking regression therapy session which can help you to find the root cause behind your suffering. This regression could be of this life or past lives as well.
Health Tips
Believe me if you think by rebirth your situation will be resolved then you are in a mistake. This cycle will keep repeating until it is resolved. I believe that you are young and still strong enough to go through this, all you need is a right direction and a right guide.