I started the same process 2 years ago. I'll let you know when I succeed ;)

But seriously...

Part of its waiting and researching more and more, looking at the matches with info you DO have for maybe geographic overlap.

Another option, if you have additional family members up the line or out through the line, get them tested as well.

I got my parents tested, 2nd cousin, half-aunt, etc in order to try and create a tree that I can somewhat better navigate. It allows me to determine to where my matches connect though as of yet I still have one huge brickwall.

Good luck.