ANSWER:
It is a major sin to be disrespectful with your parents and Allah does not forgive you unless your parents forgive you, so seek their forgiveness. However this does not affect your wudu or prayer.
ANSWER:
It is a major sin to be disrespectful with your parents and Allah does not forgive you unless your parents forgive you, so seek their forgiveness. However this does not affect your wudu or prayer.