Are you driving?
The best thing to do, if you are, is go to a large parking lot and practice.
If this is just about the horses, donít worry. They will be fine.
Walk in, eyes forward, just like walking into the barn. Donít look back at the horse. If the lead gets snug(horse stops) say what ever you say to get them to go. If that doesnít work, (still do NOT look at the horse!) back out, back the horse up firmly. Do not say, easyhoneysmoochybabyitsok....back up about 5 steps, then go forward again, with purpose, into the trailer. Your lead should be about 3 feet to the horse, not held close to the halter.
Tie the horse, ask them to step up, and over, if needed, close the gate. Repeat with the others. Be sure they have hay in hay net or bag.
The #1 thing is...Do Not be in a rush. If you have to arrive 2 hours early because you started 3 hours early and they jumped right in, thatís OK!!
I don't break horses, I FIX them!