Of course we have to be careful, before you invest make a research about the coin don't be hundred percent confident because there's alot of scam coins out there.
it is mandatory to study the crypto market before investing into it. You can make good profits from your investment if you have knowledge about crypto market.
You should observe the market on daily basis. Give as much time as you can, and try to understand the coming market situation to take your decisions on the right time. By affective cryptocurrency trading you can make huge money in less time.
The more knowledge we will have the more we will get profit so it is true that we can get good amount of profit from our bitcoin investment but only if we will remain carefully about what we are investing and what we a should do with it to have good amount of profit, if we are here to take our decision according other mare situation then now is the best time to buy some bitcoin and hold all of them for long term.