Career counseling sounds like an excellent idea. Maybe you can also apply for some summer internships or if its too late, you might consider short term jobs so you get an idea of the job atmosphere in different areas.
I didn't work much but I had an office job where the atmosphere was very competitive. We didn't really take any coffee breaks because the boss was always there kind of watching us :/ The only interaction I had was lunch break with one colleague.
Not sure but I think you had a similar thread once and I answered you that instead of making future plans to have friends in your work life, it might be more helpful to actively seek friends now. If you put all your hope on making friends once you start working, depending on where you will be working, you might be disappointed, because you set too high expectations Maybe you could do volunteer work? I found that people who volunteer are overall very open minded and easy going people.