As you get to know the sport better you will hopefully see a pattern emerging between the wind and tides and what areas fish on a certain tide and swell direction, some beaches may fish 3 hours into the flood and maybe 2 hours into the ebb with a south easterly swell or they might fish the last 3 hours of the ebb and maybe 1 hour up. What might help you when fishing is when you catch fish maybe make a note of the size of the tide you fished, how far in to the tide you started to catch the fish and swell direction.
Ie: high water is at 7.36pm, 4.8m, 3ft northerly swell.
Started catching fish at 5pm and no more bites after 8pm.
Now that to me for the mark you were fishing gives you a window from my point of view to fish for 3 hours ( 2.5 hours before high water and 1 hour after).
Hope this sorts of helps. Later on when you get the hang of things you could maybe add pressure in to it as well.