i think so risky if you Holding bitcoin a long time , may be just 3-6 Month it's good . but , if you already got cheap or profit you should sell your bitcoin , and waiting dump again .
I agree, because if holding bitcoin for too long will be risky and you should have a target or can predict the bitcoin price situation because we will not know the future even though it has been expected to always go up but what's wrong to always be vigilant. sell on target and save not too long the most important selling when you think you can make a profit. but it all depends on his most important person wisely to act so as not to regret.
Holding it for a long period of time has a high chance of losing your money. We can't avoid bad things that could possibly happen to bitcoin as time passes by. Thus, it won't give as an assurance that it will keep on increasing its price. So, if there's a chance that you think bitcoin's value is really high today or it reaches your target price, then don't hesitate to sell it right away.