Abandoned transaction - now can't send anything
Once the tx is broadcast, you cannot simply cancel it. This is because nodes already know about it, and it is a valid transaction waiting to be mined. Since the fee is low, it might sit in the mempool for a couple weeks (see -mempoolexpiry), or until the mempool gets large enough it gets bumped out as the lowest fee rate tx (see -maxmempool default is 300MB). You can do something like replace by fee, which replaces the previous transaction with one that has a higher fee. I think the real question that needs to be asked is Why is my transaction not getting confirmed and what can I do about it? Also, How do transactions leave the memory pool might also be helpful.