Take this time to "learn" it is not going to be easy nor fast, if it was you would see more out there hunting, humm come to think about it I do compared to the 70`s. Don't get frustrated or discouraged rings are what everyone of us hunts for and as time has passed become harder to find, due to all the hunters.
Everyone has given you great advice.
Few lil tidbits, Slow down, way down, till it takes you an hour to cover an area the size you would normally pass through in 5 mins, I have spent hours on a beach and not gone more then a block.
Second tidbit, use pinpoint dig everything you hear, I only use Disc when I'm tired or feeling lazy.
Third tidbit, You will never find it unless you get your coil over it, and sometimes as has been stated even if you do get your coil over it, its just too deep to hear.
The days of walking off the beaches with a showbox full of items is long gone, yes I said shoebox done it many times back in the late 70`s. Now you have to be meticulous you have to hunt harder and longer then the others out there, or find the secret sweet spots. Places where the current pulls items and stockpiles them waiting on you, but even they change.
The beach is just like the ocean, ever changing, no one hour is like the next nor one day to the next, worked the same area one day that gave great next day dried to nothing.
There are so many things one could tell you, so many it could fill 10 books and still not explain it all.
Relish each find like its a gift, cause guess what >>>>> it is.