Om Swami
What practical steps can I take to stop snapping at my family when angry?
Resolve, walk away, and enlist your family
Do something like walking away or drinking water, and resolve not to say harsh words to anyone while angry. Ask a family member to help you remember your resolve, since home is where anger is expressed most.
Or you can resolve not to say harsh words to anyone while you feel angry. You can also tell your family, since that is where you express your anger the most.