It's true, Most people tend to dive head first without knowing much about where they are heading. Why? Because they see people earning 200% on a trade and they think that they can also do that. But no, You need experience when it comes in trading. Experience defines who and what are you in the market. So take your time, Don't be greedy. You will have that 200% someday, Just wait.
Not necessary.
There can be a lot of factors. Trading is a very seductive thing, even if you are well aware of all the dangers that an ordinary trader faces.
I guess the better word for that is attractive

Trading has emerged through the years because of a high possible profit using the volatility of the crypto market however there are still disadvantage of trading crypto, the binary of result in trading is never balanced for me. All traders lose.
As a newcomer, you will often overestimate your strengths and make transactions ignoring money management and risk management, in full confidence that you understand how the market works.
But the market is too unpredictable to succumb to such gambling impulses, this will often lead to losses.
If you are a newbie and wants to begin with cryptocurrency trading, I suggests to hear the opinion of others, don't rush things and never make a move that you are not ready for. There have been threads made for minimizing the risk in trading, you can check it out it here on the same trading section. The market is really unpredictable that the technical analysis fails more often these days, so you better carefully watch the market while trading.