I use wait at the beginning as well, because I'm an unfit 50+ and I need a head start
. Lots of trainers don't teach a touch command at all, let alone the way that 5scompany described, but William and I were taught that way by our second agility trainer and I think it's the best way to get good contacts. Until then I was really struggling.
But most importantly, just enjoy it and don't get downheartened when you go through spells when progress seems really slow, or you think you're actually getting worse! It happens to all of us.
William and I compete in Grade 1, so we're not exactly high fliers and never will be, but we have great fun and I feel really proud when we get a clear round rosette or better.