what he regrets is that the price of Cardano has increased compared to bitcoin which was stable in the state he was in when he checked the assets he owned.
it is not a problem because both are good assets.
but at least the OP still has a bit of Cardano to enjoy the benefits.
That's clearly true, because owning Bitcoin also won't hurt even though price movements are now starting to slow down, but Bitcoin will always be good to have at all times, because Bitcoin is very different from other Altcoins even though Altcoins like Cardano are also very good now.