I agree twitch isn't sustainable or even good for anyone. I've been caught in it and quite addicted for the past year, finding in it another form of escapism that's in my opinion more harmful than youtube. On youtube eventually I run out of stuff and grow bored for a while. On twitch that rarely happens, mainly because it's more engaging to watch something live than a youtube highlight of the game, I can interact with chat live and backseat the gamers even though I'm ignored most of the time that's more engaging than passively watching a youtube video where I can provide no input.
I personally made some videos showcasing specific products I used in my hobby. I made video's that showed them in a way I wanted to see on Youtube before buying, but couldn't find. I then added some affiliate links in the description. These video's brought in some money that I then spent on other stuff for the hobby.
Don't expect to earn a living wage off Youtube. You have to get very lucky (or be incredibly good, see 'Stuff Made Here') to do that. Earning some money is quite doable though, if you find the right niche.
Not for specific reasons, just because you're learning. If you've gotta go through hell, go fast.
[1] videos still need to be watchable ofc.
E: what is watchable though?
Begin, middle, end. Intro, stakes, hook, call to action, meat and potatoes, another cta, summary and seeya next time, don't forget to like and subscribe.
Keep a sense engaged, audio or video should always have something happening. Dead air is the sound of viewers leaving.
Reengage the audience after each scene change.
When in doubt, have a countdown to something. Show the remaining time wherever you get bored watching it back.
Record everything, edit to nothing. Make the video the shortest it can be while still watchable.
Believing effort is equal to reward is an express train to burnout.
Otherwise, just do it for yourself, go hard, go deep, and hope for the best.
I looked at adding occasional Twitch livestreams to my output but quickly realized to make it return any kind of sustainable income, you have to practically "become a streamer".
There's no slow on-ramp like with YouTube, where you could start earning income after a few weeks/months of producing content and promoting it, growing an audience.
And then if you want to pause YouTube for a month or two, you don't lose the metrics that allow you to have an income.
It seems like Twitch is a grind, a lot more so than YouTube (where there's enough pressure, thank you very much!), and unless you're fully devoted to it, or are single and/or young with a lot of time to burn (and very mature about how you burn it), it's going to be very hard to maintain any kind of work life balance.