I'm here from the Reddit. Your only real issues is that you need to use health flasks when under around 60% health, to avoid being two-shot, and you need to stop getting caught by those madness attacks and those few sword swings. You were doing just fine, just try keeping your health topped off, and work on finding a way to dodge the madness. A good way to get in the chugs is to dodge until you would attack, but chug instead of attacking. I think if you just use your red flasks, then you'll do fine.
I'm here from the Reddit. Your only real issues is that you need to use health flasks when under around 60% health, to avoid being two-shot, and you need to stop getting caught by those madness attacks and those few sword swings. You were doing just fine, just try keeping your health topped off, and work on finding a way to dodge the madness. A good way to get in the chugs is to dodge until you would attack, but chug instead of attacking.
I think if you just use your red flasks, then you'll do fine.