How can I not cry in front of my psychologist?

I haven't seen a psych in 3 years, but I'm going back on Tuesday. I used to be a lot better at keeping my emotions in check or at least acting them away if that makes sense. But now I literally will start crying at the slightest things, especially talking about emotions. So how can I stop myself from crying in front of them when I start to talk about what's going on in my life?