if you have a copy of your backup (phrase or saved file) or any of your private keys written down or saved somewhere…that is the only way to recover the coins…
your public address is just that…there is no way to get coins from a public address unless someone sends the coins using the private key belonging to the public address
you can lose everything at a casino…you buy a crypto coin…you will always have a cryptocoin until you sell it to someone…this is not gambling its trading