I'm struggling to find a good work-life balance.  By the time I get home at night I'm too exhausted to interact much with my girlfriend at home
I know where you are coming from. Why do you think you're exhausted?
Flextime
Flextime (also spelled flexitime [British English], flex-time) is a flexible hours schedule that allows workers to alter workday start and finish times. In contrast to traditional work arrangements that require employees to work a standard 9 a.m. to 5 p.m. day, flextime typically involves a "core" period of the day during which employees are required to be at work (e.g., between 11 a.m. and 3 p.m.), and a "bandwidth" period within which all required hours must be worked (e.g.,
attempt making the film, Gilliam said, "Oh, I don't know, pigheadedness, stupid – I really don't know anymore. I'm beginning to actually think, 'If it doesn't work this time, I'm gonna dump it.' I've wasted far too much of my life doing it. If you're going to do Quixote, you have to become as mad as Quixote. [...] I've wasted how many years? Fifteen? Yeah, there's a certain point.