Holding for so many years is good but we don't know what would happen to bitcoin in the future, we cant say that it will continue going up or maybe it will go down again and besides hodling for the long term requires good discipline and patience, don't just rely on the hype, a lot of beginners or even investors lost the opportunity because of being impatience or they sometimes rely on the hype in social media.
I strongly believe that one who buy bitcoin today and sell after one year will be in huge profit. It will give you minimum 2x and can give you 4x and even more. People attraction towards bitcoin show that it will pump huge.
Still, no assurance for that, we cant assume that bitcoin will grow up in the future, even though a lot of advise says that hodling for a long term is really good, it still depends on what would happen in bitcoin.