My coworker and I ranted about work

I was happy with my current job right now but lately I have been realizing that it was not enough. I am no longer happy and after work I was unable to do some other things also because after work I am mentally, physically and emotionally drained that I will go straight to bed after work. I thought I was the only one but my coworker also feel the same and we share the same thoughts that we are going to look for another job next year.