If I lose my seed phrase, is there any way I can get my wallet back? Usually, seed phrases are 12 or 24. If I accidentally lose one of them, is there any way I can get my wallet back?
If you lose your seed phrase and you have no additional backup anywhere, then you have lost your funds forever. Your seed phrase is your recovery tool and without it you cannot recover your wallet. It is best to have more than one backup, so if you lose one, you can recover your wallet with the other and move your funds to a new wallet.
Lastly,backup your seed phrase and private keys offline and have duplicates of them in case they got destroyed or lost.
With HD wallets there is no need to back up private keys anymore. All you have yo back up is your seed phrase and that's that.