It ok to trade TA with indicators, but I often think many just don't look at the trees that make up the chart, nor keep an eye on longer term S/R and trendlines, whether they off highs/lows or closing prices, best to once a hour to take a break and check them and see very cheap entries and look for bounces. Longer the term of the trendlines, more significance are the trend lines.
Fridays are a little tougher to trade, but only reason tougher is am worn out from trading the week, price goes up and down. If anything , this shows you have flaws in some rules of methods and you looking at this wrong, this is showing you have opportunities to fix them! An experienced trader should be able to trade any time or at least have rules in place in case they want to trade them.