Unfortunatly, it is impossible to decide what we really want. The only way to see if you like something is to do it. It’s a trial and error process- some people are lucky and find a passionate career early on and others take decades to get their.

I’m undergoing the same problem. I had a passion for science and philosophy, but instead took an engineering degree for job security. I found I didn’t really like engineering and secretly longed to do something cool (like studying black holes, creation of the universe, etc), not working construction. Instead I took a graduate degree to do research in environmental engineering (water management) to see if I have a passion for research. I found I really did not fit in and got a bit bitter over everything. Then I realized something… I enjoy teaching. I always felt exhilerated when tutoring math/stats/physics or teaching labs. I made a choice- I will teach.

Now that I have a degree (and hopefully my masters degree soon) I can get a TESL. A scientific or professional oriented english speaker is greatly desired in Japan to teach english to professionals there. I now have a plan- I will teach English overseas.

The moral of the story- I did something I didn’t like, but still found something I liked that I never knew I would like.

It doesn’t matter what you do, as long as you are open to experimenting. Maybe you will find something you really like outside of psych or communications by accident. Or maybe you will find a really exciting job in communications. Or maybe you could combine psychology and communications to something else. Don’t give up!