no fear .hold ur bitcoin in offline wallet.and do not share your private key to anyone

bitcoin price will grow more
In a positive thoughts you are right. But hackers are just right there waiting for a chance to get into the system; transfer the funds if can and destroy. They are already there before the start of bitcoin and they hacked whatever it takes. However, with the preciseness of cryptocurrency system, everything that hackers can penetrate into the system were already considered and that is why mining was built.
My fear being bitcoin holder is the hacker by doing nothing but stoling something or destroy something that not to them. And also they dont have care in anyone, as long as they can damage the property in anyone and make it money for them.
And those hackers are ready any time for you to attack like when they saw an opportunity they'll easily eats you. That's why we better be extra cautious in everything we do and securing more our wallets. Better be safe than end up to nothing.
And also my biggest fear is when bitcoin loss its value but i don't want to over think things as yeah maybe that would happen but it surely takes more decades.