Trent/Neuse River fly fishing

I'm in New Bern, NC. I'm mainly fishing the Trent River (a tributary of
the Neuse River), and can't seem to catch anything. I'm boatless, so I
always fish from the shore. I've had a few strikes off of terrestrials
(bees), but no luck with poppers, hoppers, etc. I'm trying to find out
what has worked to catch panfish in the past.

Perhaps I haven't found a decent spot yet (fishing from Lawson Creek
Park)?? Panfish are *supposed* to be easier to catch..

Ideas??