welcome the the donkey forum, Ginny, Lucy and yellowrose...
there was an article in the Brayer about leading your donkeys, what stuck in my head was the diagrams - they had a horse superimposed over a wagon, and a donkey superimposed over a wheelbarrow. something about the way they are built, you cannot PULL a donkey, but you can PUSH them. sometimes if i have one that wants to balk i will dangle a treat in front of her nose LOL. i also push them, not physically, but with noise - mine don't like raspberries <pphhhttt> but that gets old quick, i also make a noise like wwhhsstt and they move away from that.
Corinne is right about them not being stubborn - my standard soapbox when people ask me that question is, they just want to know that what you are asking them isn't going to hurt them, and sometimes it takes them a bit of time to figure it out, and quite often people refuse to give them the time they need. donkeys are not stubborn - PEOPLE ARE IMPATIENT! that said i must admit that there are times when we cannot wait for them, so we have one directing with the lead rope (not pulling, jus tmaking sure they go where we want them to go) and one pushing with noise from behind - or even physically if the noise doesn't work. even if i have to physically force one of mine to go where they don't want to, as soon as they step where i have asked, i release the pressure and praise them a whole bunch!
for instance, it took us almost 20 minutes to walk through the church the first time we practiced Christmas Eve, and it took several bouts of physical pushing. the second the third times we walked right through, no problem, in just a couple of minutes! once they feel safe, it's "been there done that"!
spend a lot of relaxed time with them, loving on them, scratching and talking to them. once they trust you they will more easily follow where you want to lead them