Bush, hot hives are difficult to requeen, the bees are terrible about killing introduced queens IF there are any eggs or young larva in the hive. The grumpy bees will kill a new queen, even a mated queen and then make queen cells with of own genetics.
To deal with a hot hive, I split the hive and walk away. One week later the hive with eggs has the queen, the other half will have queen cells. Destroy the queen cells, a day later introduce a queen cell or protected queen in the queenless hive. The hive with eggs,,,, find the queen, eliminate her and again a week later destroy the queen cells wait a day and introduce a queen cell or protected queen.
The reason for splitting the hot hive is simply to reduce the number of bees, that is, better to deal with 15,000 bees in two splits than to deal with one hive containing 30,000 bees. I do not know how big your hive is, maybe to small to split so consider. Put another way, it is easier to find a queen in 15,000 bees than 30,000.
The goal is to limit your exposure to hot bees, thus limit stings and change the genetics. Hot hives are so bad about killing introduced queens. If you leave a hot hive a single egg, they will kill your introduced queen and make their own. Bees can distinguish different strains but this is beyond the scope of your question.
The above is how I requeen hives that want to kill you. Maybe your bees are not quite so bad, I hope not. Good luck, and Blessings.