I'm glad you're not seriously hurt.

I proud myself for being anal about attention to details. I've not had such a self-inflicted accident yet. Knock on wood. But I realize we're all human, and I'm not improving with age when it comes to recalling what got done properly.

I had an experience this Summer that opened my eyes. I usually am a careful shadetree mechanic. I had to replace my wife's car's front brakes and rotors. It's insanely hot during the Summer months. I got up at 4am to tackle the job promptly while the temps are around 80 F. I finished the 1st side and was quite winded due to rising temps and lack of sleep. I started the 2nd side and stopped for a caffeine break. Boy did I needed it. After the espresso kicked in, I started to question whether I had torqued down the brake caliper bracket. The torque wrench was out, but I just couldn't recall. I dropped the jack and went back to the 1st wheel, and sure enough...the darn bolts were only finger tight!!
Talk about a major disaster if I allowed my wife to drive off on that!
I humbly brought it up to the lack of her amusement. Only to point out it can happen to anyone, even myself, the omnipotent one. LOL!

There are reasons why checklists exist. I firmly believe in them and will create some so I don't do another bonehead mistake.
It's easy enough to do...make an Excel spreadsheet template. Use it for all your flips and rides.