Taking care of small electrical issues in your home can often be done safely and successfully by yourself. Before you begin any repairs, always remember to disconnect the power at the main panel.
A few common wiring https://lh3.googleusercontent.com/p/AF1QipNU9tadeMM85IzoUuuWSLVm3cdWR3V7OqwYowos=s1360-w1360-h1020