If your transactions are spending unconfirmed transactions, then at some point the chain of unconfirmed transactions will be too long and the transactions won't be accepted by your own node's mempool or other nodes' mempools. This is probably happening resulting in your transactions becoming "stuck" as the other mining node rejects the transactions. You will need to rebroadcast them to that node, and not do them all at once.
Originally, I didn't send unconfirmed balance. I sent from my balance.
And how to rebroadcast it?
And it almost took 1~2 days to confirm, strange thing is, when I sent 50 mil, or 80 mil, it stucked, but when I sent 10 mil, it goes smoothly and fastly.