I've had so many instances of buyer's remorse in my life. I try to curb impulse buys and this helps. If I have that "I just gotta have this" feeling I wait a few days and the desire usually passes. If it doesn't, I thoroughly read product reviews (especially if it's a big ticket item).

Marketers are getting so much better at getting you to buy by peppering you with ads for things you've recently read about or searched online. Restraint will be much more difficult in the coming years.

I share your feelings about crypto's future. I see so many folks selling their bags and exiting now. This will likely be a huge regret for most of them.