I re-read this thread and your other one about selling the bike. I hear a lot of "maybe" and possibly" from you about what happened, but ultimately you're not really sure. May I humbly relay an anecdote?
In my teens (many many years ago) I wanted to fly airplanes.
Began lesson in the winter - nice, cold, crisp, DENSE, air. Takeoff's were easy.
Maybe 6 or 7 lessons in, it was the first real warm day. Taxi to takeoff, hit my rotation speed (iirc was around 50 kts), pull... and bounce, several times, down the runway.
Instructor takes over, immediately pulls throttle and we taxi back off the runway. And SIT.
"What happened?
me: we bounced, a couple times.
Why?
me: ..... I.... don't know."
So we continued to sit until I figured it out. A few questions to guide me, what's my Vr speed, what are the conditions today, temp, wind, etc.
Finally it clicked with me. I was previously relying on good cold air and was yanking/forcing the aircraft up with the elevators, rather than rotating and letting the wings gain lift.
"EXACTLY"
We go back and try again. I changed my approach/movements, and never an issue again.
I never ended up finishing my PPL, probably for the best. But that lesson really stuck with me. Unless you do some real self-reflection to figure out what actions YOU made to cause a screw up, you haven't really "learned your lesson" and may repeat it.