Annestown can be hard at the best of times, especially this time of year. Give it a miss until later in the year, I found it fished best on a coming tide 3 hours up and 1 down with a good surf.
Head for Cheekpoint, Passage or anywhere else in the estuary at the mo there's plenty to keep you busy there.
Hope this helps.
Or you could head Seanies direction, plenty of fish down that way