Wiring

What is the cause of my turn signals don't
work but when I turn my park lights on the
driverside turn signal stays lit up on
instrument panel and also when my park
lights are on the rear brake light and signal
light stays lit up as if I have them turned on
and I don't have a brake light on the
driverside.i replaced bulbs,fuses,and the
relay and it's only the driverside that's doing
this except no signal light at all