I also have a Dare but have been able to get a red cross hair. It took me awhile to figure out that you have to aim the crosshairs at the bottom tip of the monster when it comes alive. If you point the curser at the monster directly, you will never get a red crosshair. Also, you have to activate the monster by looking at it first. Once it is activated, you can get red cross hairs when you aim at it's bottom tentical. Also, I have not been able to get first aid from the bedrooms. But, I did get a first aid for the first time as Moon. A key to help get passed the monster without losing too much health is to use a stylis on the screen and point to the tip of the monster as it stretches out and then use your other hand to tap the OK button. Just cycle back and forth between aiming the stylis on the end of the monster and taping the OK button.
Once you become the second character, Moon, you will have to kill several monsters in a row before you get your first health kit from a cupboard in the normal realm dinning room. You'll find a key when you kill the last monster in the dark realm dinning room.
Hope that helps. I'm not finished with the game yet myself, but I did take three weeks off playing the game when I couldn't get a red crosshair. Then I just tried to be a little more precise with my aiming as the monster came alive and finally success.