I'm not sure what you're going for, but at least for child psych you don't really have to worry about it. I was a finance guy, but the woman is in grad school and she did nothing undergrad that was related besides some volunteer work, and that was minimal. She's in one of the better programs right now.
I did nothing at all. No internships, no volunteer work, and the jobs that I have held since graduating 2 years ago not only didn't require a history degree, they probably didn't require a degree at all.
Also, I like to stress out.