Because the problems are so varied, you will probably need to talk to someone about how to deal with them. This could be your parents, friends, other family members, or some other professional.
Thinking about what you can control and sort out, and what is beyond your control (like parental divorce, or mental illness or disability), may help you cope better with a stressful situation.
If your parents are OK, but there are lots of arguments, to sort out family rules, everyone could try an be:-
Reasonable, talks in a calm and non-blaming way
Giving ground a bit, more give and take
Keeping promises, so that people can be trusted
Respecting privacy, and different views, even if you don't all agree
General problem solving skills can help, its hard to do this, if people have lost their tempers and are shouting, so try and do this when everyone is calmer.