I totally agree and this is a trading strategy that I do, even if the profit is not too big I prefer to sell it instead of later. The price goes down and we lose the opportunity to gain profit. After that we can wait for the price to drop to buy it again, because greed will only generate regret.

I am new to Cryptocurrency, I am still learning and haven't gotten anything. Just from Crypto trading and today's increase in Bitcoin price has given me a bit of an advantage.

I don't think Ethereum price will rise $10,000 to $12,000 at the end of this year. Now the price of Ethereum is $544.96. I believe the ethereum price will increase $700 in this year.

The price of Bitcoin has been pumping high and has passed the 2017 ATH, but Ethereum has not been able to touch the highest ATH that year. Hopefully the Ethereum Price will catch up with the Bitcoin price soon, Buy Ethereum and hold on.

bitcoin at the end of this year will be higher than $ 17,000. look now, the price of bitcoin started to rise and reached $ 19,000
won't that be a surprise at the end of this year

try to enter the market guys, today the price of Bitcoin has reached more than $ 20,000. And this is the new ATH from Bitcoin this year.  The people who hold Bitcoin have benefited greatly.

I am still a beginner in this Cryptocurrency, and I am also learning to trade Cryptocurrency coins. The strategy that I do is, take advantage of it every day even though it's a little. This means that every time I buy a coin and the price goes up, and when I get a profit I will immediately sell my coin and wait for the price to fall to buy again.

Because Cryptocurrency has a value that can go up high in the future so Cryptocurrency is a good investment.  But this Cryptocurrency investment also carries a high risk.  We can invest safely, namely investing in gold or land, but the potential is not as good as Cryptocurrency Investments.

I recommend dyor( do your own research) that you participate in the right project to promote in social media.
Once you rank up you can join signature campaign. By the way, DYOR is always necessary.

Good luck

What do you mean by DYOR sir?  I really don't understand. 
Oh yeah, I can join the social Media Bounty Campaign, but unfortunately I haven't dared to promote Cryptocurrency on my social media.  I'm afraid my social media friends will ask what it is, I can't explain it yet!

Coingecko has a good appearance and fast loading, I used this site to see a list of Cryptocurrency coins currently available. And it really helped me to know the information about Crypto that I was looking for.