Solved Hooking fields offset HP

void (*old_update)(void* instance);
void hook_update(void* instance){
    if (instance != NULL){
        void* CConfigEnemy = *(void**)((uint64_t)instance + 0xEF8B);
        if (CConfigEnemy){
            int health_Head = *(int*)((uint64_t)CConfigEnemy + 0xC0000);
        }
    }
    old_update(instance);
}

(*old_healthUpdate)(void *instance); 
void healthUpdateMod(void *instance) {
    if (instance != NULL) {
        if (isHealth) {
            *(float *) ((uint64_t) instance + 0x10) = 9999.8f;
        }
    }
    old_healthUpdate(instance);
}