I would not say that it was really a sudden price fall. It was expected, as all the time since May we were growing. Right now I think we have entered "year 2018" according to 4 year bitcoin price cycle. So get ready for frequent price changes and drops.

Yes, I think It's bitcoin price cycle every 4 years.
But that's normal, I still believe bitcoin and altcoins will have bullish again.
No worries about the market condition.

In the year 2017 we saw alot of bounty campaigns in the Altcoinstalk down to the year 2018, that time you can see useful bounty to participate but currently is very difficult to see crypto bounty that's successful, but do you think that bounty hunting is it profitable or not?

Join bounty is very profitable and you can get free tokens from it.
I have joined bounty, maybe several bounties in my free time.
I also still hold several coins from bounty, hopefully they will be more expensive.

be careful bitcoin new monthly candle seems to go down to  50000  or to broken weekly trend at 46000

That's true, bitcoin is still struggling now..
I think We should buy several potential coins more.
Because while bitcoin has correction, altcoins price will go down.
Buy more, it's the right time.

I am investing my money in these coins. please share your opinions about these coins that are good for investment or not?

EOS
BNB
TRX
Cartesi
Siacoin
XRP
Reef

My investment coins are BNB, SOL, BTC, ETH, Cartesi.
I always believe in my coin investment will have great future.
Current market is still red, maybe I will buy more again.

Comment with the cryptocurrencies you have in your wallet and why you chose them  EXCEPT SCAMMERS lol

The last altcoins that I bought is Solana.
I have bought while correction at last week.
I think solana is very potential coins and will have brighter future  than now.

There was a claim that China want their currency which is yuan to replace the US dollar as the worlds global currency. That would give it more control over its economy. sometimes I just be wondering how this countries always push their own currency in the forefront ahead of other country, regarding to what China is saying about their yuan currency in trying to make it gain more value than US dollar. Base on your own opinion can that be possible?

Yes, It can happen.
I think dollar can be replaced by crypto currency at the coming future. Except dollar will have own crypto.
If the Digital currency will dominance at the world, everything will be crypto.

For me money equals opportunity. Opportunity to experience anything by myself, and not by someone else. Opportunity to make my own review or test something. They are an instrument to add colors to my life. Without them my life wont be black and white, but they definitely make it brighter.

You are too cult of money. As if without money you are paralyzed and can't do anything. And that's an exaggeration, because we have plenty of other tools to test and find opportunities