oh well...
I pushed trough A2 and A3 until Travincal so I can farm a bit, but all the runs were super hard even on P3 and I managed to S&E 5-6 times with less than 100 hp. this time I was slow and this is where the journey ends.
note to self: in the future, never set rules for specific farming area, HC P8 is hard enough without this stupid rule