I'm worried that I won't succeed on accumulating as much as I want. 

Jokes asides, there isn't something I'm less worried about nowadays than the future than bitcoin.

Yes, it's still treated as an experimental software, but I'm comfortable with that. In any case, what isn't experimental? Is fiat currency not experimental? Of course not, gold standard was abolished in 1971, and we're now observing the consequences of monetary policies that depend on irresponsible politicians.