At present, Bitcoin has been injected, but its price is still low compared to the peak. If we want to make a huge profit, then I think it's best to hold onto and wait until the end of the year. Many experts said that by the end of this year the market would grow and Bitcoin would reach over $ 25,000. Besides, now is a good time to invest in Bitcoin and other altcoin. I will buy more Stellar, Cardano and NEO.