How to refuse an acquaintance to introduce an object

If rejected, there are only two reasons that are more appropriate.

Since I'm introducing you to a blind date, there's no need to tell each other that you already have one. Then the other party should also know very well and will not continue to introduce you.

It can also be said that I still want to work hard for a period of time, for my own career. There is no plan in this regard for the time being, and the other party should be able to understand.

But the other party must be kind, so try not to refuse. Because after being rejected once or twice. Maybe. There will be fewer and fewer people introducing you, and you may miss some fate.