I broke my clutch in with all of 300 miles, maybe less. Same setup as you, oem clutch with a ttv flywheel and its still going good plus im supercharged. How do you set off when you start driving? I usually just come off the clutch with the smallest throttle application, like I can get going at idle. I think the oem clutch can take some abuse in terms of hard shifting and launching the car but its the overheating that they dont like. Let me ask you, as sfar as breaking the clutch in, did you just drive the car or did you transfer clutch material to the flywheel as intended? Im only at 4000 miles on my car, but its 4000miles of very hard driving.
https://www.youtube.com/shorts/-RklRwSMl2M
this setup can take some hard ass shifts, like chirping the tires 2nd-3rd gearshift so I believe the issue isnt one of mechanical nature. its either operator or contamination.