Hey, i understand that you are feeling helpless and powerless in this situation. It isn't easy to deal with difficult family members. While your heart is in the right place to look out for your loved ones, as a son and grandson, it is affecting you as well, and naturally so.
You may feel angry, upset and even alone at times. You may feel overwhelmed emotionally and may find it tough to handle all that is happening around you.
I would recommend that you connect with a professional to discuss this further and they would be equipped to guide you on these concerns.
Next Steps
connect with a Psychologist to help with anger management, emotional regulation, and to deal with these family related concerns.