Not allowed? Mesh`ane makom meshane mazal, maybe go to other shadchanim?
I find that the best matches are set up by family and friends, not shadchanim, anyway.
It’s important to get your name out there, but once you do, there are many people who want someone with good middos who is not necessarily learning full time. Good middos are more important than anything else in marriage, and any girl with her head on her shoulders realizes that.