Hi, I'm a freshman physics undergrad. I'm wondering what I can do in my four years. I have no job or research position, and I don't know if I should get one by now. I'm still in the middle of freshman physics series though. I don't even know what focus I want. Probably particle physics, but I like to know if I like the others. My questions are: when am I ready to be involve in a research? What can or should I do outside of my time? After what class should I ask the professors in my school for research position? Thank you.