Originally the turn signals would blink rapidly when I put them on.
Then, they were blinking slower than usual and turning off if I ever hit the brake while driving.
One time last night, they just weren't working, showing a light luminescence of the signals but not fully lighted, and would only blink once if I ever hit the hazard lights.

What's going on and how do I fix this? I've heard "blinker relays", the hazard switch, or something is going on with the bulbs.

I've checked the lights themselves and they seem to light up appropriately, but the function is the issue. What's my solution?

 

Without witnessing it, sounds like a possible failing flasher module, aka hazard button. WHen the signals malfunction, leave the turn signal engaged and then turn on the hazards. wait a second and turn the hazards off. If the turn signal resumes to normal, my money votes bad hazard/flasher module.