I had a particularly bad bout of insomnia this year. I recall one night just lying in bed and analyzing my entire life in my head, all my actions and mistakes. Oddly the only other time I've managed to stay so fixated on that topic was during a moderately negative trip.
Not trying to sound rude in the slightest - but if that's the only tangle you've had with it... I'd consider yourself a bit lucky haha. 2-4 hours nightly for now half my life (young 20's) now. Caused by other somewhat severe med issues, may hopefully be getting under control soon...
I've been sleeping 4-5 hours since the pandemic started and I feel like I'm about to die