How to fix signal light problem in my Chevrolet Cavalier 1999?

My car works fine but yesterday when I was driving I tried signalling left but the clicker wasnt making a sound and my signal lights were not working.

I have tried my emergency lights and they are working fine.

Brake lights are also working fine.

I checked all fuses and they are not burnt out.

What’s the next thing I can check?
If it is the relay flasher, how difficult is it to reach it and repair it?