I signed in to some website they asked me about my credentials, ID , phone number etc. I gave them now waiting to be approved which enables me to buy it. I am planning to put all my savings in this
I hope it's one reputed website, because you have to watch around closely, there are scam sites too.
Take care.
Questions about it more: For what is this used is there a dark market and that's why it is high? Will my country try to track me down - I don't like being in prisons, never been in one. How do you guys louder money?
It's being used more and more. It's a currency (and an asset). It's not the best coin for illegal stuff since it's only pseudo-anonymous (don't worry for now about that).
We don't focus on illegal things and we don't want to get into prison neither. And I don't know how to launder money
Of course, in every ecosystem there are also bad people, there are scams and illegalities, so there are here too (and for some time those were most of the news on Bitcoin).
Boys do you mine bitcoin, how fast can I get like 100 or more of them from mining?
The speed on making 100 Bitcoin depends on how much somebody has invested in Bitcoin ASIC miners - some special devices for mining, quite expensive a piece.
I don't own Bitcoin mining hardware, I don't mine.
Some say that all balances and wallets, whatever it may be, are open and can be accessed by somebody else and I am unable to reclaim my bitcoins if i have in future - how do you cope with this? Do you move frequently to escape others taking?
On Bitcoin network you have (simplified) one address and one key for that address. The address is public. Anyone can see how much Bitcoin is there. Some may check this and that and understand that it's your address (but usually that will happen only if you tell publicly that info). But that's not a problem, since only you have the key and that means that only you can move away (spend) that Bitcoin.
So no, I don't move my Bitcoin away to escape people seeing it. However, wherever I move them, people will see (unless I use mixers).
What do you do to fast earn bitcoin?
Work. Bitcoin is money. Like Dollar. In quite similar way you go to work, earn money and can buy USD or EUR of that, you can buy Bitcoin too.
Or you can earn (sub units of) Bitcoin directly for goods and services.
I see that there are a lot other bitcoin versions should i buy those or only bitcoin?
You know, there is US Dollar, Canadian Dollar, Hong Kong Dollar and so on. The real dollar is the US dollar.
Many things can have "bitcoin" in their name, but only one is the real Bitcoin.
I won't tell if you should buy this or that. It's up to you. In the same way you can invest in same time in USD and HKD, in the same way you can invest into BTC and BCH, if you think it worth it.
What your recommendationss what software to use, or website to login? i read that blockchain.info is the best place and requires little knowledge - my bitcoins safe with them? Or i will need other provider? Will they take my balance?
The safest use to be a wallet on your computer/laptop. And (especially if you talk about big investment) you'll need hardware wallet.
In the case of most web sites you don't own that money. They do. You own an account. If the website goes down, if it goes out of business, your money is gone.
BUT: if you keep local wallet, you'll need to be careful because there are viruses / malware targeting Bitcoin; you'll need that computer SAFE.
What is the difference bitcoin + bitcoin cash + bitcoin gold + BitcoinDark can I buy bitcoin gold and sell it for much much more for bitcoin price? Do you do this?
See the USD/CAD/HKD example. Add EUR and other currencies to the list. You can invest in one when it's low, wait until it's high, sell for another one and so on.
It's the same with crypto-currencies - BTC, BCH, BTG, Ethereum, Monero, Dash, Waves, Ripple, and some 1000 more