BE A FIGHTER
More than Legal Help, you need Family Counselling and that of an advice from a Psychiatrist. Address this issue by talking to your family members / friends / well-wishers and address your mindset's issue immediately.
Do not have any such nasty thoughts in your mind, human life is the wonderful gift given by the Almighty, live your life to the fullest possible extent as a CZAR !!!
The problems are TESTS posed by him on us. Face the TESTS and come out with flying colours.
COMING TO YOUR DOUBT:
Assuming that you do act according to your instincts, will you be able to see them being punished / what is the benefit you will get on your exit ?
Do not take such senseless hasty decisions.
Live the life to the full extent, do not be fickle minded but be a BRAVE BOY and face the reality / truth of life.
Take them to task show to one and all that, you are not a COWARD but a BRAVE HEART.
Think about your other family members before acting what passes on them due to your immature / senseless acts.
May God Bless You and pray for his support in this hour of your Despair & Distress !!!