Thanks Riku.
It's not that I hate teaching or think I'll never be good at it, it's just hard when I picture this perfect ideal of what I would like teaching to be like and it becomes clear just how far I have to go. And there's no big secret or One Easy Trick to get there, just a long long time of learning a little bit here and a little bit there and having a million moments of "oh oops I should've done that differently" and "wait is this really the best way to do this" along the way. All I can really do is keep trying and get experience, i guess.
Also, I found this on Facebook and holy cow I've never agreed with a random Facebook image so much in my life.

In the teaching profession especially, the last thing I want to hear about is how other teachers are taking work home over their weekend and staying at the school until 8 and other ridiculous stuff. After the bad times I had in college stressing myself out to the limit, I need to take care of my mental health.
I don't want to be seen as lazy or unmotivated just because I take the occasional break to stare at my phone for a few minutes during off periods, or because I'd rather finish as much as I can during the work day instead of taking work home, which keeps me from spending time with Brock from Cockfighting Society or just unwinding in general. If I can find ways to save myself that time by planning ahead, you bet your booty I'll do it instead of working myself to death.
I haven't had any actual "judgment" over how much workload I'm taking on, but I do worry because in this line of work, references are everything in getting a job and who knows what the other teachers actually think of me. Hopefully good stuff, but you never know. The glorification of being overworked is definitely there, though. Even back when I was in college, my professors would almost brag about the worst things that happened at their job, as if it were an inspiring story. Meanwhile I sat there thinking "...is this supposed to make me WANT to work at the most violent, underfunded, inner-city school I can find?". Because it didn't work. ...okay, rant's over now.