Are you satisfied with this way of life, or would you prefer to live a different way? What would you like to change and how? Personally, I'm clueless and not satisfied with the idea of spending the rest of my life like this.
I’m satisfied with my current life cycle that perfectly fit on your description. I think you will only feel empty if you didn’t want your job due to the work load or work space environment.
I’m a professional and doing the job that I study for many years which I dedicated my life. This is what we called career and you will enjoy doing it since you will appreciate what you study to apply in real life scenario. Having 2 days a week for day off is already sufficient to me since it’s too boring in the house without doing my job that I have passion.
I think the problem is the job itself and not the cycle. The cycle is good if you are enjoying it.