First, make the distinctions between life, multicellular life, intelligent life, and technological life.
There has been life on Earth for the last 3.8 billion years, multicellular life for just under 1 billion years, intelligent life for about 2 million years (maybe longer if you include dolphins), and technological life for around 10,000 years.
We have been producing signals that could be detected elsewhere for less than 100 years.
The really big hurdle seems to be that for multicellular life. That is what took so long on Earth. Once that happened, intelligent life was fairly quick. Technology was very, very quick after that.
Now, how long do you think our species will survive? Another million years?
if so, technological life could well be common, but *overlap* between technological life in our galaxy rare.