[brundolf]

You can't really know. Even other people's anecdotes don't mean much, because everybody has different things that make them happy or unhappy. The only way to really learn how things are is to venture out and see for yourself!

I was miserable at my first software job. I liked the people I worked with, the company was small/casual, I thought I had it pretty good. But underneath I was deeply unhappy. So I saved up some money, quit, and tried freelancing for a few months. Parts of that were great, I learned things, but overall it wasn't for me. So then I went back and looked for a new full-time job. That one ended up being the best job I've had, and really showed me how much I can love my work in the right circumstances.

None of that would have happened if I'd just stayed and gritted my teeth

I would ask yourself: are you really happy? If so, great! But if part of you is unhappy or even just curious, go see what else is out there! There's very little risk if you wait to quit until you've found a job, especially if you're young and without dependents. Don't assume what you've got is the best you can hope for. Take an abundance mindset, and go learn about yourself and your field! You can't predict what will happen, you just have to go out and see