seeing bitcoin prices go down and up, I'm a bit frightened to buy bitcoin at the moment, I judge I could lose, do you think, whether bitcoin prices can continue to go down, or even rise high?
Try to monitor the market situation regularly and also do your own research also to find if the present price of bitcoin going down or it poise to go up. Aside from fundamental and technical analysis, your own experience in crypto trading will also help. But if you are still a newbie in cryptocurrencies and trading, you have to educate yourself first. Presently, the price of the bitcoin is below $7500 and might go down before recovery takes place.