Dear Friend,
I hear that you have experienced a very difficult phase in your childhood, which indeed are crucial years of one's life. Witnessing your parents fight so often, hearing your mother's distressing self talk and suicidal ideations may have taken away the love and care a child deserves. This may have planted within yourself a seed(s) of fear for instance the fear of abandonment which may lead to insecurities with trust, feeling of being judged, self doubt and so on.
Next Steps
Every person is unique and hence there experiences are unique as well. There is no readymade solution for this, however with the help of a Psychotherapist you can seek therapy and work on overcoming your fears and insecurities which are preventing you from living a free life with well-being.
Health Tips
Keeping everything within yourself can be quite suffocating. Yo may try journaling your thoughts, so that there is a concrete release of distress. If not, you may try other forms of expression such as art, music, etc whatever suits you.