Back out, you went into a biohazard fight without a bleed immune, what were you expecting?
Would Ghost work without synergies?
You need a bleed immune champ or someone that can bypass the bleed damage like Ghost or Quake while out damaging or heal blocking/reversing Crossbones healing. Alternatively use a burst champ and end the fight when the burst is over, revive and repeat. It seems like you lack such options if I'm not mistaken which means that quitting and waiting for such champions makes sense.
You need a bleed immune champ or someone that can bypass the bleed damage like Ghost or Quake while out damaging or heal blocking/reversing Crossbones healing. Alternatively use a burst champ and end the fight when the burst is over, revive and repeat. It seems like you lack such options if I'm not mistaken which means that quitting and waiting for such champions makes sense. Quake wont work unless you have force of will node down