Completing a day's work in 1-2h and then switching to 2nd WFH job, but clocking in full 8 hours for both. For years?

I have a mediocre office job that's really easy. I use macros I wrote to do the work. My accuracy is at 100% for over 10k cases and my speed is in the top 3 out of about 60 full-time employees. I also found a way to literally do any case or a list of 100+ cases with a one-button macro but I haven't tried that yet cause .. job security.

I got another job working from home that is similar, all day's cases done in 1-3h, I close one case per hour and stay cocked in until I sign out. The time overlaps. Neither job knows about the other and I'm bringing in about $4500 per two weeks for 4-5h of work a day.

They both use MS Teams. I use a mouse jiggler, custom meetings (1h at most per workflow, spread out) and a set-timer to stay "active."

So far I've got nothing but praise from management, and my coworkers who notice my absence I've befriended and they are all seemingly cool and think what I'm doing is badass. In return for not ratting on me I close 20% of their cases a day so all they have to do is open case, check notes, close, done. So I'm essentially doing double the work at one job and all the work at my 2nd job.

It just seems too good to be true. Its been a year of this and so far so good but I just always have this (growing) feeling in the back of my mind that it's all gonna come crumbling down soon. There's no justification for feeling this, no reports of absense/notices/warnings, but I just have this sinking feeling of dread and that disaster is nearby.

Have any of you managed to do something similar for medium to long term?