Leaving IB after 1 year - what should I do?

Just to kick off with a few thoughts.

1) For "how bad it looks", it depends where you choose to move to. If the story is just "I did the job for a year and realised that I didn't like it, so I left", I think that's fine, so long as it's consistent with what you choose to do after. You need to be able to explain what you didn't like, and why that won't be an issue in your new role. I think a year is a respectable enough amount of time.

2) Second question I can't answer because I haven't done that. However, I would caution against leaving without any idea of what you want to do next...

3) ...And so to the real question. You don't seem to know what you want to do, and haven't given a lot to work with other than you don't enjoy menial tasks, and it seems like you want to find some meaning. On the first point, a little bit of tough love might be to comment that most people don't love their jobs - it's work, and a lot of it isn't fun. It's absolutely right that some tasks are total BS (aligning logos at 2am) and of course you want to avoid that, but a lot of jobs unfortunately have this (grass isn't always greener).

To advise on "cool" fields to pivot into, you really need to think about your skills, what you enjoy, and what your other constrainsts are (e.g. how much money you think you'll need, etc.) Just to avoid making the same mistake twice.

I do totally encourage using your youth in a way you won't regret (e.g. travel), but try to balance that with your long-term goals. If you have rich parents who can finance you through doing this for a while, go for it (while understanding that you should start preparing for the long term occupation at some point). But IB allowed me to build a financial foundation which I don't regret 10 years later, enabling fulfilment in other ways (e.g. a wife and hopefully soon, kids). Your priorities will change as you mature. And it's also important to keep in mind that IB as a job changes quite a bit as you become more senior (in my opinion, in a way which is better / less bad).

So I'm not trying to say "tough it out" by any means. But you have the relative luxury of being employed, so make your next move in a structured way (which you're doing by asking questions on this forum). Speak with the people who know you best, figure out what you like and what you want your longer term to look like (by the way business school is full of people doing the same thing).