Investment is always a risky job .For a good profit , you must need to take some risk .I think those who do not want to risk, this work is not suitable for them.

There is no option to recover private key . It was more sensitive, So my suggestion.......... keep your private key in a safe place. If possible, wrote it on a secure place.

Yes, Of course this is possible. Bitcoin need blockchain for survive but blockchain don't need Bitcoin for survive .  Blockchain is a popular technology.  If it promote a coin I think it's run proudly .

Bitcoin is the king of all cryptocurrency . The value of Bitcon is too high .  This coin in first rank on coinmarketcap.

This is perfect time for buying BTC ,but don't buy too much . As a beginner you need to understand the market first.

No, Don't sell your coin now . This is a bad decision . Hold your coin now and wait for rising .

Selling bitcoin is not a stupid decision for traders because they buy when it's price low and sell when it's price high . They do not stock bitcoins .

I think, If people stop buying BTC then after short time it's price gone on 0$

I think this is not a perfect time for selling Bitcoin.  people says the end of this year Bitcoin price go on 20k......  so this time is perfect for holding.

I'm confused,Bitcoin price back on 1k !!  Is this possible  ?? 

If nobody buy bitcoin,It's price down........... but this is not possible becouse Bitcoin is a popular coin and people ever buy it.

If I have lot of bitcoins then I went to buy a beautiful house,  a expensive car  and lot of thinks .

Yes, This is the best time to buy BTC ... I think it's hit 20k very soon.

Bitcoin is a online cryptocurrency . It was born on 2009. Since 2009 it's price very low but present time it's price to high.

You can use it for more profit ....  buy low sell high 😜

No, I don't have one Bitcoin.  I have some Shatoshi.

Definitely,  I think Bitcoin survive after 100 year.

I thing it is not best time for sell Bitcoin .My advice ,Hold now.

I don't think so ! Bitcoin is a online cryptocurrency , not a real money . It's not possible .

I think you don't need to buy a book about bitcoin . If you need more information about bitcoin then you will search on Google or read forum sites . there's too many articles you found on Google about bitcoin.