The problem with my blinker is that when I straighten out the wheel it doesn’t automatically turn off on left but when I use it to turn right it shuts off does anybody know what the problem is and how I can fix it?

you need a new switch, the cancelling mechanism is built in the switch. If the car has an air bag, it's more difficult, but not impossible. Follow the repair manual exactly if it has an airbag, or you could cause the bag to deploy and seriously injure yourself.

the right rear brake light goes out when the left turn signal is activated. any ideas