The best time for buying is at low price and I think if you sell your coins with profit then you should not regret after Fluctuations in coin price because you have already taken your profit so ready to make another step instead of regret about past.
If you are in doubt about other coin then just buy bitcoin now and don't sell until you achieved your target. This time is not suitable for selling but if someone is in huge profit and he cannot hold longer then selling should be preferred. Understand the market and accept your profit but I think if someone is selling their bitcoin without waiting more so he will miss the opportunity of having huge profit in Bull season.
regrets after selling Bitcoin mostly happens because no one can perfectly predict the coin market.
Prices move up and down it's just based on supply demand and sentiment.if after buying,the price goes down immediately just wait untill it's goes up if you are not urgently in need of money at the time,you just can't predict this things.but it's always save to buy coins when the prices drop .
Your statement here is wrong, Being urgently in need of money should not be the determinant for selling bitcoin, people regret selling bitcoin because they sold early and because they chose to trade with bitcoin rather than invest in it which is a financial mistake, no one should be trading with bitcoin on any normal circumstance instead just keep accumulating with DCA, waiting for the DIP when you can DCA is also a financial mistake as it shows a tendency to sell immediately the price goes back up so don't be telling people it's okay to sell if they are urgently in need of money, this is why having an emergency fund in important as an investor so you don't ever have to sell too early.
You are correct to point out the issue ZeroVinsonN since each of us should be striving to set up our finances and our psychology in such a way that we are not feeling urgent about money, and we should be attempting to put cash cushions between our bitcoin and our weekly/monthly expenses so that we may well not need to sell any bitcoin for 4-10 years or longer after we buy them.
Once we establish a large enough bitcoin stash, then perhaps at that point, we might start to sell bitcoin from time to time, yet if we build our bitcoin stash, it would most likely take longer than 4 years before we might start to feel that we might be in a position to start to be able to sell some bitcoin, even if we might have had gotten to overaccumulation (and/or front loaded our bitcoin investment) earlier in the process.
It may well be that Youngrebel is thinking about bitcoin as a trade rather than as an investment, so bitcoin becomes more scary when it is considered in that kind of a way - especially since bitcoin tends to be so volatile, which is another one of the reasons that frequently we need to build a cushion of funds between our regular money for expenses and our bitcoin that hopefully we are building until it gets to a large enough status that we might start to feel comfortable selling some of it from time to time.
Guys who consider bitcoin as a trade might never get to status of feeling comfortable with their bitcoin because they are ongoingly considering when to get in and/or when to get out.