4. if e be say non of this things way I mention dey available, the best thing to do na to wait. most transaction dey usually confirm once the network dey less busy.
Sometimes, when em dey mempool for so long and no miner include am, e go fit drop back to your wallet when it's evicted by the node mempool and you go fit initiate the transaction again.
now, all newbies way dey here, before you send Bitcoin next time, to avoid delay, no just choose cheapest fee because you won save some money, lastly make sure say you check the recommended fee first before you proceed.
A very good site to check fee rate na
https://mempool.space make sure you use at least the medium priority fee-rate to broadcast your transactions so that em go get high possibility of being included by the miners. Some wallets sets the fee automatically, but any wallet wey fit show you manually set the fees, suppose support RBF at least e.g Electrum.