In the moment I don't always count it as joy. After the fact I reflect (and do so as I can in the moment) on the situation and how I responded. Each time, I learn a little more. Each time I learn to give to God sooner. Each time I pray more. Each time I reflect more.
It is in reflecting that I too can count it all joy. But I try to keep in mind that everything that happens is part of His plan to use me to reach others.