I wanna believe in your prediction, but I'm afraid, that bitcoin can die in 2-3 years

then you may as well save yourself the time and throw in the towel right now. no point hanging around a doomed project. set yourself free and leave us all to sink with the ship.
I am strongly of the opinion that bitcoin is not dying in near future. Though nothing is permanent here everything is to die . But Bitcoin will rule the crypto family for several years till some better option is invented. As crypto currency and bitcoin has taken the place of fiat ; may be after some years some better technique is there then only we may see for what few people are afraid of (death of bitoin).