ChiSau
The other thing that may help is getting used to the idea of using your periferal vision in the latter stages of the flare (if you are holding off properly you won’t be able to see down the runway straight ahead cos the nose will be in the way) the second thing which nobody has mentioned so far (I don’t think so anyway) is if you’ve flared too high or bounce it have no fear, just open up and go around (same thing applies if you just can’t get happy with an approach earlier on). No instuctor or any other pilot worth their salt will hold it against you, in fact they will probably commend you for your airmanship. Remember what goes around lands better.
The other thing I’ve heard on the flap setting question especially for early on students is that with two lots of flap (on a PA28 anyway) the go-around is easier because there’s no immediate need to take drag flap off when climbing away. I always use full flap (unless its gusty) if you got it use it that’s my motto.