This is the big thing with breakout strats, you have to have some pattern to it. Quite simply going short at the zone where the last 2 times buyers have come is just a recipe for disaster. I agree that the more an area is hit, the more likely to breakout of it but I’d be looking to get in way before the breakout so I could have my stops at breakeven.
I haven’t done enough analysis but any breakout strateies that do work are very likely to be quantitatively based on trading volume and ATR. There is a reason why the 24 year old “pro” over at F4N suceeded in trading breakouts when GJ had a daily range of over 400 pips and why his method failed substantially in the last 18 months (GJ range much much smaller now).