Nah don't go to the barber shop, you probably won't feel comfortable with having others around you staring at your head. Thats how I was anyways... I wanted to be the first one to see myself bald and I wanted to get used to seeing myself that way, before I showed others. So I used clippers #3, then #2, then #1, and finally a razor. That way, the shock value went down and it wasn't bad at all!
Here is a tip, after you've gotten your hair short (which it is already), just use the guard and buzz one side of your head, like a hole above the ear. That way you can either chicken out, and have a stupid looking empty patch on the side of your head, or "be forced" to shave the rest of your hair so the patch is gone heh. Thats what I did anyways.
You may get some negative comments at first, I got them from some of my family and my coworkers (I worked with a lot of black employees and some of them called me a skinhead- yeah I know... I couldn't believe it either, but they tried to say it in a joking manner. Anyways after they got used to seeing me with no hair the rude comments stopped. But I didn't keep my head bald long enough for my family to leave me alone about it. Now I got hair (and a bald spot) and I want to shave it off again, because I've been bald before and I know it looks good on me. I just got to do it. It is a nice feeling knowing that you don't need to worry about hair anymore.
Without hair, people are able to focus on my handsomeness :p. Eventually you'll take the plunge and shave it all off. Whats the worst that could happen? In 2 weeks it'll be back to a clippers #1 and in about 4 weeks it'll be at wear you are at right now. Good luck, and we are here to support you!
