I've done fast food too. And done it well. Again, it's about setting a personal standard for yourself. At the end of the day if you're not truly motivated to do better, you're always going to be dragging your feet through work. And ending up changing jobs a lot. Because if you're not creative or exceptionally talented or going to live off a Youtube channel....life is generally a job that isn't your first choice. So you learn to find passion in your work not for the work's sake but because if you can't make yourself care, it's intolerable. I've done a lot boring jobs and the only thing that made them bearable was trying to do them well. And after working tech for 4 years, I can honestly say troubleshooting and problem solving doesn't really inspire me. Turned out talking to customers does to a greater extent. Something I never would have pegged for myself.
Learning to care about your work regardless of what it is now, while you're young, can only help you. It sounds stupid but, I remember as a kid my mom trying to convince me washing dishes was "fun", in an effort to get me to do them. I told her that was crazy, that washing dishes can't be fun. Now....? I sort of DO get into washing the dishes, getting the kitchen cleaned up. Setting a task and completing it. Zoning out for 15 or 20 minutes and just doing something task-oriented. When I was 20 I couldn't be assed to do anything outside of my paying job. (Transcribing for the university Sociology Department at the time. There it was about trying to crank out the most transcriptions the fastest with the highest accuracy.)
I guess my real point is....it doesn't get any easier. Maybe you get lucky, and stumble on a cool job that you like and eventually really get into. More than likely though, most jobs are one form of suck or another that you have to learn to deal with in your own way. Especially after college when you've gotten that degree but perhaps have no real motivation to "start a career." (I didn't.) I ended up being unemployed for three years after graduating, leeching off family, because I couldn't really get my shit together and get working again. "Nothing motivated me" was my response then too. Eventually it was guilt, desperation and luck that landed me my current job. Even after all my "have passion" I struggled to work up the motivation.
So if you think it's blargh now.....just wait. It only intensifies as you get older. Unless, again, you get into a job that is just so awesome it beggar's belief. You gotten straighten that back and start taking your job seriously, whatever job it is, or ennui will never stop bugging you. That, or you start actually looking for an interesting job.
What helps me at work is the knowledge that, on the other end of the phone, there's probably a heavy-set redneck truck mechanic in his 40s with a gun rack in his truck who doesn't get technology but knows his day is getting fucked up because of it. Outta respect for that guy's time, and supporting my company's pledge to help our peeps, I take my job seriously.