First, check your bulbs. With the parking lights OFF, put the turn signal on and check all three bulbs. Front, back, and front side marker. They should all be ON, if not flashing. Put the other signal on and repeat. If one bulb is not on, that's your bad one. Be sure your flasher is good. Replace it with a known good flasher and see if they work. If not, check your fuse again, using a continuity gauge, don't depend on mere sight, sometimes they burn out inside the end cap and you won't see the break. Still nothing? Remove the bulbs, one at a time, and check the bulb base contacts in each socket for voltage. All this with the parking lights OFF. If there's no voltage in the sockets, you've got an issue with either the switch or wiring. Do your hazard flashers work? Check that, and if they're flashing, check to make sure all the bulbs are working. If they are, your problem is in the turn signal flasher or switch.