I am able to understand your situation. You seem to be suffering from adjustment problems with depressive symptoms. However suicide is not the solution for anything. If you feel your parent is excessively authoritarian you should try to take them for a psychiatric consultation. Some counselling sessions for them and if needed medical help might be useful for you. For further assistance you can directly consult with me through Practo. Discussions will be held confidential. Online chat consultation is also available.