One pointless and stress-filled day at a time. Eventually you'll become too old to work, so there's that to look forward to. Plus, once you hit your 30s or so it starts going by faster and faster, so it'll be over before you know it
Form a union to fight for better wages, hours, and working conditions or start a worker co-op so you can be part of a democratic workplace where you actually give a fuck about the business's success.
Oh cool. I think this is an inherent issue with workers not being invested in their jobs. This is why co-ops are better. More involvement and more return for your labor. Waking up early wouldn't matter if you wanted to be at work
Do the day-to-day fairly well. See if there's other opportunities about that interest you, pay well, have a corporate structure you can withstand or have a preferable work-life balance. See where you can move to ... try to stay in industries that can withstand downturns or make yourself valuable enough.
In terms of withstanding it mentally ... find other activities and things in life that you can look forward to. Life (hopefully) isn't about work.