With the unstable increase and decrease in bitcoin is it a good idea buying, selling or holding now? Like yesterday I saw it hit $19,000 on coinbase but today it stands at $16,000
Bitcoin is unstable, bitcoin may increase and then fall, but bitcoin certainly can to increase again. You must have a prediction of when it is appropriate to enter the market, buy when the price falls and when the price rises higher then you can sell it for profit.