running a sim in pspice (demo version)

I have a schematic that I would like to run a simulation of. I'm using a spice program for the very first time today. I've got the schematic drawn and I'm trying to figure out how to start a simulation. I'm using OrCAD PSpice demo version because that's what my school tells its students to use. I'm aware of LTSpice but I wanted to use what the rest of the students are using. I'm not looking for instructions on how to use LTSpice right now. The instruction booklet that I am following says, first name the simulation "by choosing the menu option PSpice>New Simulation Profile." I don't see it in the menus at the top of the page. It doesn't seem to appear in the buttons on the schematic window, or in something I found called the simulation manager. I just can't figure out how to start a simulation. What am I doing wrong?