Hey not an area i fish in and you are not really clear what you are trying to catch but some thoughts...
use lighter gear (leader and line)
use fresh bait
make freinds with your local tackle store, aleays shop there and ask for help
rather than relying on marks i spend a lot of time looking at contours on maps looking for signs of bommies, kinks in the contours that could through eddies. Then learn the currents and tides in you area.
try using the sounder to find reef and good bottom for fish if you are fishing on the bottom.
if give more info on what you want to catch easier to help