Make sure try to visit the dojo enough to get lv4 martial arts you can also buy more than one healing potion in the shop in the mall and it helps tremendously, also buy the gladiator dream in the brothel to level up defense and buy items in the shop you come across in the exploring activity. There’s also a way to get a 3rd partner who works as a healing super move but I don’t remember where it’s acquired from exactly should be one of those things listed before.