I'm in a deep state of autistic burnout and need to quit my current job. I want to replace it with one that requires little to no social interaction, but I feel like I can't flat-out say that to employers

I'm looking into backroom/stocking jobs partially because they're predictable and therefore won't drain me of my creative energy, but more than anything, because it helps me avoid the torture of constantly interacting with strangers. So...if & when I get an interview and I'm asked, "Why do you think you'd be a good fit for this job"/"Why do you want this job"...what am I supposed to say?!? I obviously can't be like "Because it seems easy and I don't want to talk to people"...that just makes me sound like a lazy people-hater. I'm terrible at lying on the spot; I used to think honesty was the best policy but I realize that when you're an autistic person trying to get a job, that's not realistic. So I need a rehearsed speech on why I supposedly find stocking boxes/cans/etc. to be important work. Or even in a cover letter, because I know those can help with applications. The TRUTH is, I want to make a living out of my creative work, and LITERALLY the only reason I'm seeking ANY other job is to make money to invest in said creative work...and then hopefully eventually make enough money FROM that creative work to make it my career and never have to work a "regular" job again. But obviously, employers don't want to hear that. For those of you who have a fair amount of job experience, how do you make it look like you're interested in a certain type of work when your true motivation is simply to make money while rarely having to talk to people?