Biggest question that hasn`t been asked is, what detector are you using?
It could be you have the disc too high or the sens too low or both.
Water work is the last fronteer for us, there are beach hunters a dime a dozen working the beach from the tide line up so that leaves us the wet stuff, it is not easy, I WANT TO SAY THAT AGAIN, it is not easy working the water, one you can`t see where the coil is to locate, second is trying to scoop in the water, third is the waves slapping and moving you around, hope that gives u a lil idea that all us water hunters face.
It takes time and alot of new people get discourged and go back to fighting for a spot on the dry sand area. But if you put the time in, and i do mean time it will reward you in the end.
I don`t even work the dry sand areas anymore, not only do you have to compete with everyone else but you have to beat the beach rakers.
Alot of people cannot get the swing of locating (targetting) a signal much less scooping, one lil trick for you run your detector wide open dig every signal (soon you will learn what not to dig, but i have always dug anything i heard) once you locate a signal place your foot next to the coil, that gives you a starting point for placing your scoop, to scoop the target. I swing with my right arm so after locating a target i place my left foot beside the coil, move the coil, then place the scoop along the inside of my foot to start the bite into the sand, i use a small coil that locates 1/2 inch off the ft of the coil so with the scoop resting against my foot and the back of the basket against my ankle i know i am starting in exactly the right direction that the coil was.