Im know expert caster but?
ie heaviest fly should be on dropper! one would normally put it on the point as the weight of the fly helps turn over???? of the leader at the end of the cast

would have thought having it on the dropper would cause tangles as the lighter fly hasnt got the weight or momentum in forward flight, the heavier fly would drop sooner causing the point to be above the dropper, if yer get what i mean

As for leaders , for a beginner use tapered or furled, i use furled all the time as i hate tapered, they last longer and are easier to change tippets , just one tip though put a piece of heavier mono/fluoro on the end before your main leader material, i use around 18in, then 15ft of leader, when using a 5ft furled leader HM mono leader, but yer makes yer choice. casting into wind is a pain for the best of us, but you can get away with the lenth youve got, youll have to change your casting by lowering your forward cast alittle, side winds are another story, just learn to get that fly into the water first with the wind at yer back, present the fly well and get some fishing time in , dont go mad about all the casting techniques just yet.

You can taper leaders down by adding low diameter lines, as said, but you end up with more knots , which i dont particully like , but thats a personal preference, but by using the previous peice of line as the dropper line , does help, rather than tying it seperately

gaz