Now crypto market is little bit down. I think next support for bitcoin will be 6000 and then go up to 1000 but the only thing we can do at this moment is just watch.
If you can hold for long the straight go for the bitcoins. I predict next bitcoin support line will be 6000. If you are looking for short-term profits you should follow CMC and invest on an altcoin and it should be chosen by you because actually, no one can't be right 100%. Nowadays I'm trading on BBC(B2B coin) since it has not only good support and resistance but also good variance.
No way until you follow right security methods. Every wallet comes with private key as public key so you need to keep it in very safe place and make sure you are not on a phishing site while exchanging private keys. Best way is use a proper security like use a ledger nano or paper wallet then you are safe.
People will say bitcoin is a ponzi sheme because they can't understand the market and blockchain technology and there are so many ponzi sheme sites that accept bitcoin payments so peoples look from outside and they decide not to deal with bitcoins. Actually loose minds.
Bitcoin prize is changing every day but not like other fiat currencies, so it is very hard to use bitcoin as a currency. If bitcoin will stable in future then there is no issue to use as currency.
I think it's a failed project. Very small cap and it seems like coin will get scammed. I'm not a professional but I think everyone has to pay some attention before something happens.