DislikedYou should follow the standard calculation as per ace's original rules - I also always look at daily level for S/R - I believe in one of his posts ace mentioned he does too.
This site is very good for calculationg your major areas of s/r - just enter the high and low of the previous day. Hope it helps
http://pivotpointcalculator.com/Default.aspxIgnored
good luck for the week