Hi Cris
The fishing times are guides only. Other variables come into it also.
Were you land based or in a boat? Did you stay in the one location for those 4 days or did you try different spots? Did you match the hatch (use bait that the fish are eating at the time)? Were you targeting a particular fish or just after whatever happens to be there? etc, etc.
For example, if you were land based did you try different casting lengths? 90% of land based anglers cast over the top of the fish they are trying to catch. Or another example, did you try different baits or lures or did you stick to the one bait?
See, so many variables come into it.
Maybe if you gives us more detailed info as to what you tried and used, someone from your area might be able to give some tips for next time.
itsaboat mate...Life is just a boat and then ya marry one !