I have been outreaching for 5 whole months before signing my very first client. And turns out, the person I managed to outreach to was the Founder of the company himself!
Just wanted to say, don't give up. You might not be signing anyone right now but you could be destined to catch the BIG FISH (aka founder/ceo) and gain much more value.
Now after signing him, I got to expand my network with high level people and even got to gain valuable insights of running a company.
DON'T GIVE UP!