For crying out loud, who do I need?

It may be tough to tell, but the enemy leader is ROLO, so your enemies gain a significant amount of turn meter every time you debuff them. That means Zam is mostly dead weight, since both of her specials hurt you more than they help. Still doable with her, just less ideal than Cad (whose special will remove turn meter, buffs, and stun). I’d say a G9/10 Cad would probably be more useful than a G11 Zam, particularly since he has a good amount of protection. If you have him, I’d sub him in. If not, keep trying, but maybe alter your strategy to avoid mass debuffs (from dengar, Boba or Zam) unless you absolutely need the health/protection to survive.
TLDR: avoid detonators/mass debuffs, they will feed enemy TM.