Two points to share:
Respect the law and regulation of your country.
Properly manage your risk and investment portfolio.
Yes every country has some rules and regulation that we will have to follow. In this age of science we can easily do anything. If you find bitcoin is being down just hold and have patience and if you see that demand is increasing so this way you will defuse to sell at panic and you will earn higher than your lose infect with care you can almost finish the risk.