Our advice to people who ask about DIY electrical is always,
Keep your hands off pipes and wires!
Electrical work and Plumbing work are both specialist trades. This means it is against the law to do this work unless you are licenced to do so, and for good reason. It is dangerous to the life and health of people using a building to have these kinds of works done by untrained and unqualified people. So go back to the top and read our advice one more time, and then,
Call an electrician or plumber!