RE: Landing Speed
One thing that may help you is to start noting on a calm day the attitude of your airplane at landing speeds. is it flat, nose down, or nose high? also, make a mental note of where your throttle typically is on a calm day when on short final and just before landing flare. keep in mind, what's keeping your airplane flying is the speed of the air flowing over your wings, not your speed in relation to the ground.
Once you have your power settings and attitude memorized, you apply it on days with more wind. At first this may feel awkward because the plane seems very slow, but remember the air flowing over you wings is still fast even though your groundspeed is slow.
On gusty days you may want to have a bit more power in case you have a sudden wind drop on final.