Theres an easy solution to regret and thats to realise you wont live forever so make the most of each day and maybe more practical is to only sell your BTC to invest into other things.    Dont spend it on junk because then you will regret as much the purchase was not worth it,  this is a shock to the system for most as modern society has become about spend spend spend and with BTC you should consider do I really need to because I might lose out.

The BTC I spent went onto things like a monitor, I was using a chunky old CRT screen for years and because everyone else is on a nice screen I was finding webpages were increasingly hard to read.  You dont realise it but they accommodate the average user setup in their web design and that is not an old CRT.

So I used to be a BTC miner, not tons but enough to buy a nicer widescreen LCD display which is so much finer then the old one and it let me carry on using the internet.  So it was a reasonable investment, in todays money that monitor was about $5,000 maybe.   Thats too bad but I cant regret having to use my funds sometimes and it was fairly essential.

Last year I sold 0.3 btc for a few hundred dollars.   Again to buy computer parts, kinda essential.    The main way I've sold BTC this year ( I held most till the summer) was to buy in some gold, this is a very reasonable hedge and parallel to crypto in not being part of the FIAT or QE system we are all stuck in.

Thats my main recommendation to people who find they sell BTC or feel they have to.   Hold a bit of gold as well because this has been used as a hedge for centuries and it will continue now, major exporting countries are currently buying in larger quantities then they have for decades previously.   I take that as a new paradigm as much as cryptocurrency has been, however right now its not as popular Im sure.