You'll be OK---a lot of this is just stepping outside of a comfort zone a bit and then you get more used to it and it's not a big deal. I remember in jr high and high school I had stopped talking to people entirely for like 2 years and when I eventually got sort of forced to interact my palms were sweaty like 24/7 and I mean it took like a year for me to even be comfortable with people again but its sort of a necessary part of life so I'm glad that I went through it and became more social again. I probably never would have been able to get a job if I had stayed that isolated but it was super hard---my anxiety levels were off the charts and I was constantly worried about what people thought of me or what I could say to them and then at some point that mostly went away and I could eat lunch with someone quite casually without some sort of nervous overload....anyway the point is its going to suck but you'll come out better for having gone though it later...