I think bitcoin is the king, so holding altcoins (even ethereum) is high-risk method right now, if bitcoin hits 25-30K many altcoins will drop 100% at latest, so trading is the safest way for me!
in your opinion what is the safest way to gain 1% daily profit from trading?
There's no telling what would a an altcoin will do to your money it might be good or bad and all you have to do is accept whats done and learn from your mistakes. Theres no safest way on trading unless you have some deep insights.