Fear is a torment, needles to be afraid for a business you have a good knowledge and experiences, and knows the ups and downs of the market.
As we know, business is a pool of risk. There is no business on earth without profit/loss, and there no reason to fear with these awareness. Crypto markets is very volatile but i trade based on my experience knowing that i may loss if i panic sell,band if you sell below your entry positions, you have panic sold and the results is fear.
My advice to newbie is learning, asked vital questions from expert traders to get more exposure, experience and confidence. Read news, follow some market analyst to help understand market trends etc