You can do this, but the problem is that there are very few altcoins that have experienced a large drop in value; instead, the majority of altcoins are increasing in value.

And holding onto altcoins would be better because the price of an altcoin can become 5 times of its value in a year but that is very unlikely with bitcoin attitude this point.

It's entirely up to you, and it all depends on the circumstances. In my opinion, coins should be sold and purchased as much as possible because it keeps the market alive. However, you should trade carefully and make fair decisions.

Out of the 10,000 or so altcoins out there, less than 1% have any real usage. The vast majority are kept alive by their promoters, so that they can profit from pump-and-dump cycles every now and then. Once the coin is no longer suitable for this pump-and-dump strategy, they will exit the coin and those who hold it at that point will lose all of their capital. If you want to invest in Cardano or Binance Coin, I don't have anything against these coins. They have real life usage and future potential. But that is not the case if you are making an investment with coins such as Anyswap, Mithril or Rewardiqa.

First of all, it is in your control. Everybody has different strategies in this market. If I were you, I wouldn't sell half of my BTC but a little of them would be sensible to enjoy spending on something.    When it comes to altcoins, it is really hard to make a decision among them as there is a bigger risk there. You should analyze them very carefully to make a good choice.

both are equally good, if you feel that what you get from bitcoin is worth selling, just do it. but if possible, just part of it to find other alternatives such as new altcoins which currently have quite a lot of potential. from there you will get a hefty profit too.

if you don't sell it is also very good, because reportedly @elonmusk will buy more bitcoin which will make bitcoin prices go up again like the end of last year which still impacts until now. the effect of @elonmusk will be felt again if the news is true, and right if you don't sell it.

everything now depends on you because who has you and who will experience it yourself, so be confident to be able to determine the next step.

My advice is that you better save it and only make sales according to your needs and that also if you really need it the good news that has happened will multiply the new profits once you made the previous big profits.
I think there are still doubts about shifting your profits to altcoins except the top altcoins, and if bitcoin is more profitable, it's better to stick with bitcoin as a whole.

I think you sell bitcoin and buy alcoin. I think it's alcoin season and you will get a lot of profit from trading alcoin. Good luck.

Just my thoughts but you better hodl it. If you bought it at 9000 you won't gonna lose anything, but i bet btc will grow more, sell it at least at 100k.

To be honest, it is your decision to be made because it's your own money after all. Investing in altcoin is not bad either however since it is a lot risker than Bitcoin you must perform proper research. What makes good investing in Bitcoin is that profit is more certain because even if it dumps, later on it will come back and grow even more you can imagine, to put it simply it is better on a longer time frame. Altcoin, on the other hand, can make a quick profit but also the risk of losing your investment is high that is why the decision must be made by you. And if you are going to invest in altcoin make sure that it must be on the top listed ones cause newly created coins were way riskier.

I read many people online say I will hold or I will sell but very rarely a read about numbers and plans. personally I believe 150k will be this cycle top so I start selling all at 100K. next I hope history will repeat and I will be able to buy back at 25-35K and wait for the next bigger ATH after 4-5 years. but even if I don't I will not sorry because I already have about the same amount normal people earn 30-40 years working in my country.
so that's it right or wrong I will quit at 100k. in addition people start to be too optimistic about price grow, institutional adoptions etc. I believe soon time will come to be fearful:)