The crypto-market today - Sell, Buy, or what to do?
I am starting to be confused myself. I am struggling from all sorts of outer and inner signals. Many of them tell me to buy, some of them tell me to sell, while others tell me to stay relaxed. It is exhausting to look at charts. Many coins that I have followed have experienced 5x-10x growth in the last couple of months, and I feel sad that I didn't invest in them, instead of just following them. But, is it too late to join the party now?
At the same time, I am wondering whether or not I should sell what I have owned for a while? Or will the markets keep pushing to higher levels? It is confusing, it takes a lot of mind-capacity, and it is easy to feel as if it takes a lot of your attention. Yes, it almost feels like back in 2017 when you checked your portfolio and all your favorites currencies on Tradingview and Blockfolio 100 times a day. It feels like a drug, and it is hard to be sane in the middle of it.
And yes, that is a constant battle that just gets harder when the markets are moving as quickly as they are today.
So, what to do in these days? Should I sell, should I buy, or should I just do nothing?

A 1000 USD Vechain investment on March 13th would have been worth 11,000 USD on July 7th, and it would be worth 9000 USD today.
What was your original plan?
This is a constant question that you should listen to. What was your original plan? Was it to sell at certain levels? If that was your plan, stick to it. If you want to invest in a crypto, you can do it today, but you better know that the prices of many of the big tokens are 2x-5x higher than they were a few months ago (with the exception of Steem and Hive). As a result, you might look back a few months later and see that you could have bought it at much lower prices. But, if the prices will grow, you might look back and be happy about the purchase. However, I would be very careful with adding new FIAT (a normal government-based currency) to the crypto world today, because we have seen before how often the market can collapse in a few days. The current total marketcap of the cryptocurrencies is about 370,000,000,000, and we don't need to go so many months back in time before it was only half. In other words, things can change quickly.
And yes, when you see tokens increase 100 percent in value in a few days, you just want to join the ride and get rich yourself. But, it is so easy to get burned on such fast money dreams, and that is why you need to use some wisdom, and maybe take a bath in cold water to wake up. The rewards might be big, but the risks are extreme!
Don't just throw money at projects you know nothing about!
It might not be like the ICO bubble in 2017, but still, there are lots of projects that have come to live in the last months, especially within the DEFI bubble. Don't just throw your money in all directions. I just read about a DEFI project which has enjoyed lots of hype and experienced nice growth lately. But, their website and domain was registered in May 2020. Now, that is just someone who has joined it all for the hype (at least, it is very possible). That is why you need to use wisdom, and still, do not invest in projects you know little or nothing about... because in the end, you might be stuck with lots of money invested in shitcoins that will be worth nothing.
You might not be a big fan of Ethereum, but knowing that they will soon release Ethereum 2.0, seems to be a nice indicator that this is one of the safer investments on the market. The same can be said about Bitcoin. IOTA is another interesting coin that will come with some big upgrades and updates in their upcoming IOTA 2.0 release, and then you have other projects that are packed with great partners and a solid team. Those might not experience 1000 percent raise in a few months (even though we have seen it happen to Chainlink), but long-term, it will still be a way safer investment.
Sell bit by bit
And once again, do not forget to sell bit by bit, unless you are in it for the long run and just hold your tokens. We always dream of more, but sometimes selling partly is a great way to growth. It is also a way to rejoice, both as the prices grow, and as they fall. If they fall, you buy more, if they grow, you sell more. No matter what, it will feel like a win situation!
So, sell bit by bit, and once you have sold, feel free to take some profit, or set new buy orders on lower buying levels.
No matter what, get some sleep, enjoy the ride, and try to be sane and do something else, than just watching your portfolio movements all day!

you are right...! we shouldn't throw our money on any project without knowing about it.
Yeah, a very important lesson that many learn the hard way! :)
you have to invest wisely, study companies and try to diversify investment in various parts, this is how i I see this market.